With Xert you set it up initially then adjust it and interact with it along the way.
The Planner is for playing what-if scenarios a week in advance. You don’t populate it like a calendar-based platform.
How far have you gotten in the Academy series videos? They are meant to be watched in order (building blocks) but the Improvement series covers how you will be changing IR (ramp rate) during a progression (as you see fit) and how to use the Planner (a week at a time).
You can watch each series while you train by selecting one from the Sessions Library or watch the individual parts which are about 15-20 minutes each.
I don’t compete but you may be interested in my first full progression experiment on Xert –
Pre-Base to TED; 120+ days; 100% recommended workouts completed at 100% difficulty - General - Xert Community Forum (xertonline.com)
Now that I understand how everything works, I am making more adjustments during each season and getting fitter and faster in the process. You are learning how to self-coach and control your training load and intensity to meet your goals.
Note XSS factors in Xert’s strain model (low, high, peak) and is not the same as TSS.
XATA is monitoring XSS to estimate hours/week but those hours vary based on the intensity of the workouts over a rolling seven day period. The pacer needle lets you how well you are doing compared to current ramp rate (this topic is covered in the I3 Academy series video).
Lots of newbie tips are also posted in this thread –
Beginner questions - Support - Xert Community Forum (xertonline.com)