Not so much a bug, perhaps a feature request but yet more evidence of the various dev teams going off in their own directions - like the Photoshop's inexplicable rationale for switch the default behaviour of proportional scaling ... ahem, I digress.

Please would you consider implementing the properties panel behaviour from InDesign? By this I am specifically referring to the extension of the properties panel behaviour when selecting the 'more options/fewer options' ellipses.

The InDesign implementation expands the existing sub-panel to include the additional options which are not normally visible.

The Illustrator implementation is less elegant by simply repeating the entire extended panel over the on top of the existing properties panel.

With the InDesign approach you know exactly where the additional options will present themselves as the hidden area extends to show the tools/function you're looking for, the solution has been thought through and worked into the properties functionality.

The Illustrator method isn't so seamless and feels a bit like a hack as in effect you're just linking to the procedure which calls the original palette.