Using Shruti 5v out

I’d like to use the 5v CV out (the one that is used for the CV in control 1-4) to have a group of 4 manual trigger/gate to control my Eurorack modules.
I already use the INs 1 to 4 with 100k lin pots.

Would it be OK to use the same 5v out with manual (momentary or toggle) push switches inline to the Gate in of the Euro modules?

Yes.