I am working with a custom Verilog-A model which has been imported into ADS. The model contains a vast number of parameters where some values are equal to one another. This becomes a bit laborious when having to tune the model as you need to simultaneously tune upwards of 6 parameters which need to be of the same value. I am looking for a way in which to link parameters to one another so that by tuning one parameter, the values of the other parameters will follow. I have tried a few different approaches to no avail. Coming from an IC-CAP background where this is straight forward, I highly assume it can be done. Typical approaches that have been tried include (for example if I want R1=R2=100) R1=100, R2="R1".. R1=100, R2="*model instance name*..R1". Neither of which seemed to work...

Any help would be greatly appreciated.

This is definitely an easy solution. For your example place a new VAR item (Data Items > VAR) and create a suitable variable definition like Rval = 100. Then assign that new variable by name to the required parameters, i.e. R1=Rval, R2=Rval, etc. You should now be able to tune the variable from the VAR item and change all parameters assign that value together.