Hi All,

I just created a simple tool for houdini , which will help you to do the relative paste reference more easy way.
You can select node and parm from the source and you can select destination node then just drag the parms where you want to paste the reference . You can easily remove reference with a simple drag or select the parms and use the remove expression button .While loading the gui it will show you the parm is connected to any expression if its there then to what.

Here is a screen capture

And here is the download link

Please check the readme file for the installing details and you must have PyQt installed and configured with houdini.

Warning !!!

This tool tested only with linux.