Hi Peter,
1.) Hmm they will be searchable within the component itself, maybe also in the joomla plugin (but not sure if already with 5.2 - the thing is that would need a lot of SQL joins, which will slow the joomla search).
2.) Hmm what do you want to achive with that? Are we talking about event specific booking fields (which is already implemented in Matukio) or event detail fields?
Why would you like them to be a select, instead of just HTML / text? (With HTML you could also show any type of field)
3.) We are currently working on a new changelog / roadmap page, but we also have a "Matukio 5.1 and afterwards" forum post with the details (and you could also like us on facebook, where we post screenshots and keep you updated).
compojoom.com/forum/102-newbie-area/1975...and-afterwards#29303
4.) We are currently at 5.0.9 and 5.2 will be a minor feature release after 5.1 (which as i said is almost ready). If you are in a hurry we can always make you also a quote for custom development of that fields (including large discounts because all users profit), would estimate around 20-30 hours for a clean and reliable solution.
Cheers,
Yves