Thanks for all of the help so far, this thing is actually working!....just need to add a few features I would like to include a radio button in this pcell that turns on/off the taps. Based on the handful of previous posts, this needs to be done with the CDF's. The code below creates the tap but doesnt there need to be an if/then statement or something? I was unable to find an example ntapId = dbOpenCellViewByType("tsmc13rf" "M1_NWELL" "symbolic") ntapInst=dbCreateParamInst(cv ntapId "ntapWell" 0:0 "R0" 1 list( list("row" "int" 1) list("column" "int" 5) ) ) dbClose(ntapId) ntapWell = rodGetObj("ntapWell" cv) rodAlign(?alignObj ntapWell ?alignHandle "lowerCenter" ?ySep halfHeight-0.39 ?xSep 1.5 )