Yes, in 'Training Log' --> 'My Training Plan' click on the 'calendar view' button. There you will see a delete button in the top right. Clicking on that you can delete entire date ranges and do other cool editing things.
Using a high-volume schedule for many months is not the best tactic. Build speed and skill several months out, and then transition to a high-volume IM plan.
This plan is designed to make you go faster. 3 workouts per week in each sport, 2 days of strength training and core work. The maximum volume is around 14 hours toward the end of the 10 weeks.
This plan is an advanced plan in terms of volume and intensity and appropriate for someone who is looking to go under 5:00 and as fast as 4:30. There isn’t a lot of fluff in the plan.
Don't know how to take that rear wheel off of your bike? Is the chain making things difficult? Learn how to remove your rear wheel if you have to change your bike tire or fix a flat.