Closest I know of is to use 'Insert - Empty Item' .. but to be honest I am not sure where those settings/parameters are set.
Here, it seems to insert some arbitrary amount of time, but I would think you can define this somewhere.

I usually just resort to sliding or Cut/Paste .. like you, I'm sure there is a better way.

Edit:
Just noticed under Item in the menu is a 'Nudge/Set Items' feature that lets you nudge selected stuff in various time definitions (mS, measures, etc). Maybe that is better for what you want (?)

Last edited by rharv; 05/17/20 07:04 AM.

I do not work here, but the benefits are still awesome
Make your sound your own!