I work on my latex document from various places. So every time, I write some sections in my latex document and if I add some words which are not already present in the dictionary, I have to re-add them, if I have corrected them from other place. I guess that for whatever words we say 'always ignore', it only does its job for that particular texstudio and not for the document. So I have to re-check the document again, which takes a lot of time. I think it would be nice to add such features that can enable one to add some words to he dictionary, which is fixed for that document only and are available if one wants to use from other places.