Thanks stephen! I followed your advice it is working now!
What I found it that:
- "Dax Evaluation Log" option seems to be missing from SSP template, that's why if I choose to open SSP by clicking on "External Tools" inside PBI, and then try to modify the template, I couldn't find the option. Not sure why, maybe b/c this is a new function that MS hasn't added it to the template options yet?
- If I open a new trace, and connect to PBI manually using local port, the option is available at start