Increase decrease leading shortcut not working in Illustrator

[#1]

Hello, previously the keyboard shotcut to increase or decrease leading worked fine (Alt+up/down). For a while, not only has it stopped working, but I can no longer find the place to change it in the menu of shotcut keyboards ...

Does anyone have a solution?

Thanks

[#2]

Looks like an InDesign shortcut.

[#3]

Do you know another way to have a shotcut for increase decrease leading in illustrator?

Thanks

[#4]

I don't think that's possible without having an item in the Shortcuts list.