[How to create guides for cutting slices?]

I see...

I was doing crop, save and undo crop but it seemed too complicated for me...

Thanks for the suggestion.

[How to create guides for cutting slices?]

Hello,

if I have many elements in my work, and I want to cut them separately (menu items for example), can I border them with some guides and then cut them in slices somehow? For example, when I do it now, I don't know when I stopped last time I cut the last element if I don't have some boundaries (guides).

Do I need some plug in for that?

Thanks in advance for the answer