How to disable/skip pipe spool not to consider stress while

hi to all

How to disable or skip pipe spool not to consider stress while doing analysis.....

I have complex cII piping model with different sizes in that model I like to check only one branch analysis by disabling other line's in CII model with out deleting.

Is there any way of doing like this?

If Yes please reply your best answer.... Thank you for your time in reading and replying.

If those elements are part of the model, they will be checked. However, you could set all of the allowable stress values to zero on those sections you're not interested in. These elements will appear in the reports, but they won't affect the pass/fail conclusion.