You can use one single license file and in that file insert features from both Cadence and Mentor provided that the FLEX license software is the latest revison of them both. This means that you can use a FLEXLM package from Mentor of version say ~10.0 with Cadence products that was shipped with FLEX version 9.0
This means that your license server only needs one installation of FLEXLM.
First there's the server text lines, then below this line you simply put e.g. "daemon mgcld c:\path...\mgcld.exe" Then below this line next "daemon cdslmd c:\path...\cdslmd.exe"
Below these lines you simply copy/paste so that all features from respective vendor appears.
I think you start "lmgrd" with IC5033, try to use "lmgrd" that calibre2004 has.
Just search the "lmgrd" that you have, & update your shell.
Different daemon with different flexlm better.