increase undo steps

Is it way to increase undo steps? I have a lot of memory... But some times 80 is very little for me to go back..

I second this. Sometimes I too run out of undo steps.

FYI

By default, "Selections" are placed in the undo stack, which can take up a lot of the undo steps available.
There is:- "Edit > Options > Undo Redo Options" > "Keep SubObject Selections In Separate Stack". To stop the stack filling with selections.
 If you still need "Undo" for Selections, use the "Common Modeling Shortcut Tools >> Undo Subobject Selections" / "Redo Subobject Selections"

Separate stack for selection undo is something I couldn't stand in Silo.

Separate stack for selection undo is something I couldn't stand in Silo.

I really like it!