Yes, certainly, and to my knowledge the update has only increased flexibility. You can select how often you want to train and for how long you want to train each day. It will warn you against doing too much, but ultimately, it will give you what you ask for.
Specifically:
(1) Launch Plan Builder and click through the dialog until you reach the Training Schedule tab.
(2) Click in Settings.
(3) Select from 2–6 workouts and 2–3 intense days per week.
(4) To customize the duration of each workout, click in the workout whose duration you want to change. Select the duration you want.
(5) You can shuffle days around, e. g. start your week on Mondays and adjust rest days as needed.
This way you can create a calendar with practically as many hours of training as you want. You are limited in some ways (e. g. you cannot select to train 7 days/week or have more than 3 intense days), but even that you can override by adding workouts to your calendar manually. Although that likely isn’t a good idea.
You can adjust those settings afterwards, too, although last time I tried it, I needed to go through the whole dialog tree again.
I have made a somewhat unusual selection this time around (and before being admitted to the beta), 3 workouts per week with 3 days of intensity. That’s because I get all my endurance volume from commutes, which are “unplanned rides”.
Sure you can:
(1) Go to your Calendar.
(2) Click in the red “+ Add” button.
(3) Select TrainerRoad Workout (below TrainerRoad AI Workout).
(4) Select the filters
I obviously cannot AB test this (old vs. new), but the UI doesn’t seem to have changed.
I’m specifically talking about the update. Unless you have been part of the beta, today is the first day it has been released to the public and you cannot have first-hand experience yet.
Again, not saying you need to like it, just that I don’t think you can judge whether or not it works for you.