Hello duhss dghh , with Calistree the programs don't get modified without your consent. Your Journey Program will slowly evolve over time as you master exercises or fail to progress, and get suggestions for modifications. That way you get consistency in your training and a slowly evolving program, which are both best for progress.

To get variety, you need to create several Journeys that focus on different objectives and alternate between them depending on the day.

Try to follow each program you build for 4-8 weeks before modifying the objectives or re-generating a new program, to get a fresh start.

There are hundreds of abs exercises in Calistree. Select "Abs" as one of your objectives to get some of them in your training program.