How to replace a new value into CDT field? For Instance, following is the d

How to replace a new value into CDT field?
For Instance, following is the data for "rndTest2" CDT variable,

[id=1, rndTest2=[id=3, rndTest1=[id=56]]]

I need to change the value for "id"(which is inside of "rndTest1") to 100 with in the rules(no script task should be used).And, the CDT type is dynamic. Now this is "rndTest2" type and after it might be the same CDT or other CDT.

Please suggest me any possible ways.

OriginalPostID-168129

OriginalPostID-168129