Use JS to create custom tool set

[#1]

Is there a way to use JS to create a custom tool set?  I've got all my buttons working and loaded using the user javascripts folder configured for Acrobat DC but I would like to take this a step further and group all those buttons under one tool set.  I can easily create and group them in the interface and export the aaui file but was hoping for a single JS approach.

I didn't see anything specifically in the SDK that discussed this in terms of JS.

TIA

[#2]

Is there a way to use JS to create a custom tool set?  I've got all my buttons working and loaded using the user javascripts folder configured for Acrobat DC but I would like to take this a step further and group all those buttons under one tool set.  I can easily create and group them in the interface and export the aaui file but was hoping for a single JS approach.

I didn't see anything specifically in the SDK that discussed this in terms of JS.

TIA

[#3]

May be not possible with Javascript.

[#4]

I assume that these buttons are created with "app.addToolButton".  Buttons created with this function in a folder level script are loaded at Acrobat startup and placed in the Add-Ons toolbar/toolpanel. However, buttons created with this function outside of a privileged context are placed on a floating toolbar, effectively grouping them into a single toolset. Create a folder level script that makes a single button or menu item that when pressed, will run non-trusted code for creating the tool button set. The lifetime of the floating toolbar is tied to the current document.

This can also be done with plug-in assist for creating either a custom menu item or toolbutton category. In the case of the toolbutton category you'd also need to add buttons with the plug-in.