[Vincenius]

Thanks! The beginner / intermediate / advanced selection is available on the screen where you select the muscles. Adding warm-ups and stretching rountines is on my list :)

[bjornasm]

Just make sure it doesn't end up to advanced and convoluted (maybe an advanced mode/easy mode?). Really nice work :)

[Physkal]

Thanks I had to check twice. My eyes glossed right over that and went straight to the muscle group.