about "set_case_analysis" command

Hi all,

I use LCELL to build 64-tap delay chain in my inputs. There is 6-bit "SEL" signal to select the amount of delay (SEL=0 is no delay). In TimeQuest, how can I set the SEL to zero to avoid the delay effect? Is any command like the "set_case_analysis" in PrimeTime?

THX