Menu > Add-ons > CS 1011 Captain II > Panel State: Load > Select Ready for takeoff from the list in the box that opens. Repeat once (I have to do it twice for the engines to remain running).

If you want a Ready to start option,  you need to get the L-1011 to that point, then save the panel:

1. Go to P3Dv4\Captain_Sim\1011 II\panel and backup the DEFAULT.cfg to DEFAULT-BAK-cfg
2. In P3Dv4 with the L-1011 in a "Ready to Start" setting, Menu > Add-ons > CS 1011 Captain II > Panel State: Save Current As > Save it by clicking on DEFAULT
3. Go to P3Dv4\Captain_Sim\1011 II\panel and rename the DEFAULT.cfg to READY TO START.cfg
4. Rename the backed up DEFAULT-BAK.CFG to  DEFAULT.cfg