UX mapping

Just starting to work on some UX flows. I like to do some high level flows that include page titles and key actions before going into wireframing.

I'm using Sketch for this one but I'm thinking of going back to good old Illustrator. CMD + Z is not working really well and color picker only works for color and not object styles! Really frustrating...

You guys have any tips for building rapid flows in Sketch? any templates?

Cheers!