I opened a doodle:

https://doodle.com/poll/x8api7npn35xm5w2

Hands-on practice is composed of two Parts. Based on your chat, I fixed Tuesday 17 and 24 of April for the first chance (Part I and Part II, respectively), while whether Thursday or Friday was quite open. Please indicate in the doodle all the days you can participate (not the preferred one please).