Time signature question | MuseScore

Hi folks,

I’m converting old scores from Noteworthy to Musescore, and have a question on time signatures.

Current project is a 4-voice hymn, 2 voices per staff. The time signature alternates back and forth from 6/4 to 4/4 to 6/4 etc.

Am I required to specify a time signature at the beginning? Or is there a way to omit the time signature and enter bar lines manually where needed?

At this point all I can figure is to set a time signature at each new bar line and then hide them for printing. That seems very labor intensive and makes for a very cluttered visual score.

Thanks.