Endcap and Decap Usage in P&R

Hi All, I want to perform place and route based on UMC 65nm node. However in the design kit, I cannot find above "physical only" cells and instead there are only filler cells (with/without n/p capacitors) and well tap cells. I was wondering whether the Endcaps and Decaps can be replaced by those filler cells with capacitors. Is this doable ? Thanks Anuradha