I write technical material, so I am frequently adding new words. But there's an annoying little issue, and I'm wondering if it can be fixed.

Let's say I want to add the (fictional) word 'framit'. If I type it as such, then click on 'add word', I still get a spelling error notification if I use it at the beginning of a sentence and capitalize it, or if I pluralize it. To get it to work correctly, I thus have to enter it four times to cover all possibilities.

Can the spell check function not be made to recognize that a word at the beginning of a sentence (i.e., following a period) will have a capital letter? Now, if the word added to the spell checker was entered with a capital to start with, then of course it would have to have a capital letter wherever it was used.

I don't know how easily the spell checker could deduce plurals (there are several different forms: s, es, i); but even cutting the number of entries in half would be helpful.