I would like to be able to add and remove exercises from a training session on the fly. For example, I have a workout called "Saturday" under the program "5/3/1". In this workout I have:
Squats
Deadlifts
GHRs
Ab rollouts

This Sunday I did this workout but I did:
Squats
Deadlifts
Turkish get-ups
A kettlebell circuit of cleans, snatches and swings

I would like to be able to remove the GHRs/rollouts from the workout if I did not do them, and be able to add extra exercises in that are not 'programmed'.

Justification: because I don't always do what I'm told :) The training log section is unusable for me until this feature is added

This has been implemented, you can now add a custom workout log not having to use a program as a template. YOu can then add exercises on the fly to the log.