The current modelling does not allow modifications to be inserted between operations that have already been carried out.
For example, I modelled a part with an extrusion, some fillets, and an extrude cut. However, I have realised that I now need a second extrusion after the first one. In order to include this, I now need to delete the fillets and the extrude cut.
It would save time if I could just disable them in the history view, make the modification, and then re-enable them.