Engrave mode note spacing

Engrave Mode Note Spacing seems to be the only mode which doesn’t allow dragging handles with the mouse. Is this deliberate? I often need to have a very wide empty measure in the middle of a system to accommodate spoken text (in an opera.) Perhaps there’s another way to accomplish this?

I find Ctrl-Alt-arrow (Cmd-Alt on Mac) makes fairly short work of note spacing, even big adjustments.

Dan, that’s what I do, but it would be SO much faster if I could drag a handle…

This absolutely is deliberate, and has been explained before: here, for instance.
Basically it wouldn’t be faster because the computer wouldn’t necessarily be able to keep up with you.

Thanks @pianoleo. That thread didn’t come up in the search I made previously.