Two minutes with the reference visible, five minutes with it hidden, repeating. Cover the reference physically during the DRAW phase; the timer drives the cadence so you can keep your eyes on the work.
cycle 0 of 3
2:00 look / 5:00 draw / 3 cyc
READY
2:00
LOOK seconds (reference visible)= 2:00 (min 10s, max 30:00)
DRAW seconds (reference hidden)= 5:00 (min 10s, max 30:00)
Target cycles (optional)Auto-stops after 3 LOOK+DRAW cycles.
Total session time21m 00s3 x (2:00 LOOK + 5:00 DRAW)