I have off page connectors on different sheets and i want to replace some of those with new names ,how can i replace all at once
There are two generic methods -
a) Use menu Edit->Global Replace and select the Offpage connector option
b) Use meu Accessories->Cadence Tcl/Tk Utilities->Find Replace Text - this allows regular expression text replacement on any of the selected object type. This is open source Tcl Code application - if you have a specific replacement algoirthm requirement the script may be modified.