I'm using QuestaSim 70.7b; And I can not change the height of waveform signal.. I've tried many options, like this:
add wave -radix hex -format analog-step -scale 100 -height 100 -color gold /bin_top_tb/clk
But nothing happen, just height of the name signal is changed, like shown below
*thanks to dave_59, to change the height you should go to Tools -> Edit Preferences and change WaveFont and then footerFont exactly at such sequence, then click apply and ok.