The request is back again… Please …No more grammar school torture! turned client embarrassment. Spell check is like MANA – necessary
What version of SketchUp and LayOut are you using? Please complete your profile with that info.
I get an indication of misspelled words in LO 2019.2.
If you need more than that, you could create your text in a word processor and let it do the correcting before you insert it into LO as a .rtf or .txt file. At least this would take care of the problem until auto-correct might be implemented in LO if it ever is.