Preprocessing of data - possible?

Hello :wave: and welcome to the forum, @zl3dred

I think that the community could best help you if you shared a screenshot of your data in table format, and maybe your raw unformatted data as well.

That way we could try and mock up your issue.

in the meantime:
for 1: try using the stat panel and selecting last from the panel editor

for 2: try using regex-based value mapping