Everyone is having trouble finding this, and knowing what it means.
A prominent button "improve layout" would be really useful, as you need to do this to most networks initially to make it biologically "readable".
Even better if it happened automatically until the display was optimised. Or if that was not possible, could the optimisation run to completion when selected once. For instance to get the "regulation of cell cycle" to optimize fully, you need to select "force directed" over twenty times (we lost count)