Change Time Signature in Drum Midi

Hi, I tried searching for this in the engine but ended up even more confused. Say I open up “Metal Production” and want to change the time signature of the default drum loop in the default template. More specifically, the default drum track in that template is in 4/4, but I want to change that to 7/8.

Would I use the drum map or? I learned already how to change the tempo via tempo track, but I must be asking the question wrong because I’ve looked in the manuals, internet, youtube, etc. and can find nothing. I’ve tried recording the midi onto an audio and changing it there, but I just keep getting frustrated, and I’d rather just change the default midi if this is possible.

Please forgive me if I’m going about this the wrong way, and understand that I’m a novice to Cubase.