There are several ways you can keep the bridge in place without altering the guitar in any way. Please don't go drilling holes in a beautiful guitar.
I use double sided tape to keep my bridges in place. Other tricks are bow resin, carpet tape, etc. Many members here use nothing and never have a problem.
Your humble crooner
"Dogs know everything. Maybe not math, but thatís okay."
- Older Russian woman walking her dog that I met while walking with Bridget.