The Routine Editor  allows creation, modifying, and deleting workout routines and  optional schedules.

Routine Creation
Type a routine name in the text box. Press Add.

Routine Deletion
Select a routine from the spinner, then press Delete.

NOTE: Routines are permanently deleted.

Routine Modification
Edit the routine name in the text box.

Optional Schedules
Workout schedules dates can be created that include frequency (by day of week , or every 1-10 days/weeks) and start and stop dates. Schedules can be changed  or new schedules can be created at any time. The only constraint is that schedule durations may not overlap.
Days of week are displayed  SMTWTFS.   Monday and Thursday workout days would be displayed as -M--T--
Every 1/10 day/weeks are displayed as      4 Days or  2 Weeks

To add a schedule, simple press the Add Schedule button and a blank schedule will appear.
Press the new schedules Begin or End button to set the duration with the Date selection activity, then press the schedule label button to set set the frequency with the schedule editor.