Altering not durations without shifting subsequent notes

Enjoying exploring Dorico. I’m wondering if there is a way to decrease the duration of a note without the subsequent notes snuggling up. For example to change a minim into a crotchet and crotchet rest. Thanks

It sounds like you are in “insert mode”. Press I again to get back into “overwrite mode”. The icons on the left of the screen show which mode you are in.

Thanks Rob - I thought I must be missing something.