Best way to extend IDE (toolbar)?

[Ben Rubinstein]

Since time immemorial, I've had a plugin which attempts/pretends to add 
additional buttons to the standard toolbar.

Actually what it used to do is locate the last button on the toolbar, tell the 
toolbar to adjust its width to just beyond this, resize itself to be the same 
height and fit the remaining space on the main monitor, and install itself as 
a palette in the appropriate location.

This used to work better than it does. Somehow the new LC 8 regime with the 
toolbar being 'modeless' instead of palette often causes my toolbar extension 
to go somewhere strange when apps switch, monitors plugged/unplugged etc).

I hear rumours about 'script-only stacks' and suggestions that some parts of 
the IDE are now in this format, and that this is supposed to be more extensible.

Is there a better/cleaner/more fashionable way in the newest versions of 
LiveCode to add one's own controls to the toolbar?

TIA,

Ben