I've found several buttons and hot keys to zoom in horizontally, but only manual "click and drag" the track to zoom in vertically. (making the wave form taller) It would be useful to be able to hit a couple of hot keys to do this.
This is an amazing program! Thank you to the developers.

Karling

Welcome to the neighborhood!

Are you able to advise which specific display if any?

Trevor

You should be able to zoom it without it showing the node line and just use the little arrow to show the node line.
You should be able to hold the mouse over the track names, hold the ctrl and turn the mouse wheel to vertically zoom.
Because they are using bitmap images in the delphi they are not scalable - if they did away with all the old bitmaps and just used color it would scale to whatever size you like.

same problem with the mixer http://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=333193#Post333193

Yes, as you've mentioned, you can click hold and drag. There's no hot key to do this (currently). The idea has merit though.

(Incidentally, clearly the track height is scalable. You've proven it)

this is the scalable you need (if you are using ie it may not animate so you can save the image then open it locally)

Yes, I agree, that would be an improvement for sure.

Thanks