I like soft, heavy boobies. 

The DAZ rig does not.

Plugins like Everlaster's Naturalis and VeeRifter's BreastAutoGravity are great for average-sized breasts, and I love them, but they're still limited by the shape and scale of the morphs and don't always work when you're making things bigger or more exaggerated. So I let the titty-obsessed worm that lives in my brain pilot me into throwing together this thing.
How it works:
(Example usage in the "Busting Free" scene.)
(As of version 3 there are save and load preset options at the top of the left side of the UI.)
1. Choose a morph
Search for the morph that you want!
2. Add it to a direction list
Using each of these buttons will add the morph to a direction. The direction is defined as which way gravity should be pulling, so for when a person is standing normally you'll want to add morphs to the "Down" list; for laying down on their back, choose "Back", because gravity will be pulling "backwards". You can also add a morph to the "Base" and "Clothed" lists. When a morph is added to a list, the morphs list (see 3.) will switch to showing that list's morphs.
"Base" is for any morphs you want to use in another list, but use a non-default value for otherwise, so e.g. if you want the "Breast Large" morph to be set at 0.5 normally, but 0.7 when leaning forward, you should set the "Base" morph to 0.5 and the "Forward" morph to 0.7; only setting the "Forward" morph to 0.7 will return the morph to its default value in any non-forward state.
"Clothed" is for any morphs that should be applied when the character is wearing clothes. These will override the morphs in any other lists, so if a character is meant to be wearing a bra you can set all of the saggy values lower, and add other morphs to make the breasts looks more squished. Currently it is its own state and not individualized based on clothing item.
3. Direction lists
This is where the morph values for each direction will appear. Scrolling through the menu at the top will show each direction's morphs, and you can set their desired values there. The "Simulate" toggle will simulate the selected direction in isolation, so you can test directions without having to spin the person or torso all around, though this won't account the effect of breast physics.
Under each morph's slider are up to four buttons: "remove" will remove the morph from the list, erasing its effect in that direction; "select" will select the morph in the morph selection menu (see 1.) for easier transfer of morphs without repeated searching; "+base" will instantly add the morph to the base morphs list; "+clothed" will instantly add the morph to the clothed morph list (not pictured in screenshot because these morphs are already in the clothed morph list, and the buttons will not appear if they're redundant).
4. Clothing
Selecting a clothing item from the "Target Clothing" list and pressing "Add Clothing" will add the clothing item to the clothing list. Here its influence can be defined from 0 to 1, with 0 being no effect and 1 being full effect. All clothing items' influences are summed (but clamped to 1) and the result is used to interpolate the morphs between their directional values and their "Clothed" values; at 0 the clothed values have no effect, at 1 the clothed values will override any other directional values for that morph. Note that only values in the clothed morph list will be overridden, so if your character has e.g. prominent nipples, those nipple morphs will each have to be added to the clothing list and set to a lower value to suppress them, otherwise they will be ignored and left as-is.
The clothing influence can be capped at a maximum value with the "Clothing Max Influence" slider. The "Override Clothing" toggle will ignore any clothing in the clothing list and drive the clothing influence directly from the "Clothing Max Influence" value.
(Clothing is a very half-baked feature at the moment, so its options are somewhat redundant and, to a degree, pointless. The plugin does not currently detect whether a clothing item is actually being worn, so its influence will remain even if the clothing is removed from the person. I was hit with some massive scope creep when making this so I had to stop myself from going all the way down that rabbit hole before even publishing the plugin, and this was one of the casualties of that. Maybe for the future!)
The DAZ rig does not.
Plugins like Everlaster's Naturalis and VeeRifter's BreastAutoGravity are great for average-sized breasts, and I love them, but they're still limited by the shape and scale of the morphs and don't always work when you're making things bigger or more exaggerated. So I let the titty-obsessed worm that lives in my brain pilot me into throwing together this thing.
How it works:
(Example usage in the "Busting Free" scene.)
(As of version 3 there are save and load preset options at the top of the left side of the UI.)
1. Choose a morph
Search for the morph that you want!
2. Add it to a direction list
Using each of these buttons will add the morph to a direction. The direction is defined as which way gravity should be pulling, so for when a person is standing normally you'll want to add morphs to the "Down" list; for laying down on their back, choose "Back", because gravity will be pulling "backwards". You can also add a morph to the "Base" and "Clothed" lists. When a morph is added to a list, the morphs list (see 3.) will switch to showing that list's morphs.
"Base" is for any morphs you want to use in another list, but use a non-default value for otherwise, so e.g. if you want the "Breast Large" morph to be set at 0.5 normally, but 0.7 when leaning forward, you should set the "Base" morph to 0.5 and the "Forward" morph to 0.7; only setting the "Forward" morph to 0.7 will return the morph to its default value in any non-forward state.
"Clothed" is for any morphs that should be applied when the character is wearing clothes. These will override the morphs in any other lists, so if a character is meant to be wearing a bra you can set all of the saggy values lower, and add other morphs to make the breasts looks more squished. Currently it is its own state and not individualized based on clothing item.
3. Direction lists
This is where the morph values for each direction will appear. Scrolling through the menu at the top will show each direction's morphs, and you can set their desired values there. The "Simulate" toggle will simulate the selected direction in isolation, so you can test directions without having to spin the person or torso all around, though this won't account the effect of breast physics.
Under each morph's slider are up to four buttons: "remove" will remove the morph from the list, erasing its effect in that direction; "select" will select the morph in the morph selection menu (see 1.) for easier transfer of morphs without repeated searching; "+base" will instantly add the morph to the base morphs list; "+clothed" will instantly add the morph to the clothed morph list (not pictured in screenshot because these morphs are already in the clothed morph list, and the buttons will not appear if they're redundant).
4. Clothing
Selecting a clothing item from the "Target Clothing" list and pressing "Add Clothing" will add the clothing item to the clothing list. Here its influence can be defined from 0 to 1, with 0 being no effect and 1 being full effect. All clothing items' influences are summed (but clamped to 1) and the result is used to interpolate the morphs between their directional values and their "Clothed" values; at 0 the clothed values have no effect, at 1 the clothed values will override any other directional values for that morph. Note that only values in the clothed morph list will be overridden, so if your character has e.g. prominent nipples, those nipple morphs will each have to be added to the clothing list and set to a lower value to suppress them, otherwise they will be ignored and left as-is.
The clothing influence can be capped at a maximum value with the "Clothing Max Influence" slider. The "Override Clothing" toggle will ignore any clothing in the clothing list and drive the clothing influence directly from the "Clothing Max Influence" value.
(Clothing is a very half-baked feature at the moment, so its options are somewhat redundant and, to a degree, pointless. The plugin does not currently detect whether a clothing item is actually being worn, so its influence will remain even if the clothing is removed from the person. I was hit with some massive scope creep when making this so I had to stop myself from going all the way down that rabbit hole before even publishing the plugin, and this was one of the casualties of that. Maybe for the future!)