XATA is changing hour by hour (if not minute by minute) since your last activity.
I use the default As of end of day (11:59pm) which means anything added to the Planner will show that as the start time. You’ll want to edit the start time if you plan to use the Planner. 
However, a simpler approach is to not populate the Planner.
Right before you ride today refresh the browser page. If you leave XO up most of the time (like I do), refreshing ensures you aren’t viewing cached advice.
Consider the “as of right now” workout options (indoors) or free ride advice (outdoors).
Use Filter if you’d like to change duration, etc.
Make your decision and ride. 
Depending on the time of day I also check Scheduled Sessions in case a group session meets my needs.
IOW Xert flexes in multiple directions depending on where you’d like to take things today.
Similarly, if predicted form isn’t how you feel today, adjusting the FF slider can generate a new list of recommendations. Sometimes you’re on the cusp of changing from yellow to blue. A minor slide (<10 pts) may be enough to change recommendations. You decide what works best for you by experimenting over time. For example, I feel I’m recovering faster than XATA predicts at the moment, so I moved the slider to the right. If that position gets to be too much over the next week, I will slide it back. The sequence trigger point will vary based on your IR setting and intensity of your workouts/rides. To test this, open the Planner, move the slider, update advice and watch what happens to form color prediction on the Planner.
Everything in Xert is built on a sliding scale over a continuum. There is never a single recommended workout you must do.
I love training this way and the fact XATA adapts to whatever I decide.
The overriding factor is progressive overload and intensity at whatever focus you decide to work on coupled with how much time you have to train today. Rinse (recover) and repeat.
Yesterday I headed out for an easy spin based on XATA’s free ride advice – Endurance, low target watts (blue zone), 124 XSS goal with a slight deficit to start.
Result was 116 XSS over 2.5 hrs and 58 difficulty score. Since I use EBC outdoors the activity got named “Easy Polar Endurance Ride”. I like this feature as it’s informative without referring to any numbers.
@johnnybike – If you are using a touchscreen with the Planner, you must tap-hold-release on a date to open XATA which displays options to select a workout or create an “empty” activity. The speedometer icon randomly selects a workout from the top four recommended list.