Sets an upper limit to the memory that is used per image to keep operations on the undo stack. Regardless of this setting, at least as many undo-levels as configured can be undone.
Suidhichidh seo crìoch uachdarach airson na cuimhne a chleachdar airson gach dealbh gus gnìomhan a chumail ann an staca nan gnìomhan as urrainnear neo-dhèanamh. A dh'aindeoin sin, gabhaidh co-dhiù uiread a ghnìomhan a neo-dhèanamh 's a chaidh a shuidheachadh an-seo.