Most of my other editors allow Ctrl Shift Z to be a redo. When I do Ctrl+Shift+Z in JMP, I get some weird

Definitely not ideal as it just wipes out my redo stack.
I can't edit it through toolbar customizations using the builtin edit:redo, but I do have a workaround with JSL
mainmenu("edit:redo");
https://community.jmp.com/t5/Discussions/Possible-to-add-undo-redo-shortcut-buttons-to-toolbar/m-p/532608#M75551 reminded me of this.