Is there a history tab

Hi!i havent worked on nomad for quite a while , now that im back , i opened a model and wish i remember what tool i usedt to make it . Would b so helpful to have a history , i thought there was one but can’t seem to find it

There is one, down left icon beside undo redo. But history is purged before saving. That is good! How many zBrush style projects with several GB would fit on mobile HDs?