The operator Panel
Hello. I am having some difficulty in the 2.8 Operator Panel. When I load a new mesh, like a cylinder the operator panel comes up and I can adjust the cylinder's vertices. Once I click on the view port the Operator Panel disappears. If I want to change the cylinder's vertices again, it seems logical that could be done by opening the Operator Panel and adjusting the vertices but, I cannot seem to find a way to open the panel again. I can find all of the other parameters in other panels but not vertices. Please help.