u/PsychicChime

I'm working on a piece and have already entered all the notes, however I decided one measure needed a few more beats to give the notes a bit more room to linger. I'd like to change just one bar of 4/4 to 6/4 and just fill the empty space with rests or something.
Right now when I change the bar to 6/4, the first two beats of the next measure get tacked onto the end of the 6/4 measure so entire rest of the score essentially gets pushed back two beats. Is there any way to avoid having to manually move everything so the following measure starts exactly like it used to?
I hope I'm explaining my issue clearly.
Edit: I'm on Dorico 5 in case that matters