Mulligan option is upper right and appears after your shot - is shows BELOW the "yards to hole" on a white tab
you'll be able to click on it as often as you please - unless you hole out while practising :)
most use it to measure different shot types - Full Back Spin, 3/4 BS, with punch, or full or pitches at various points along the meter (90%, 80% etc) or even to see wind effects
Keep hittin'em straight
L F