Is there an option letting me copy / transfer the format of a marked area / (part of a) word?

Is there an option / icon / button letting me copy / transfer the format of a marked area / (part of a) word to other text / words?

Yes, if you’re looking to copy and paste character formatting, check out the Format ▸ Font ▸ Copy/Past Font commands. “Font” here, as with the parent menu itself is an abstraction for all character formatting.

There is also another specific command in the Paragraph submenu, as well of course the para+char copy and paste commands in the main Format menu. So you can choose exactly what you want to copy and paste.

Ah, great! Thank you very much!