How can I copy the word complete word collection list?

I previously was able to go tools > autocorrect > autocorrect options > word completion and copy the words in the Word Collection window. I then pasted the words in an LO file. I developed several-thousand word collections of words that I opened when I was writing documents. I have been unable to select the words in the word collection window for copying. Has this function been altered? How am I able to copy the word collection? It is very useful to develop word complete files for writing documents of different subject matter. Can I still copy the word collection? If not, can this function be recovered as it is a very useful tool for writers to be able to load a word collection that is germane to each writing subject. Please advise. J W Hill

Do these two questions help? Export AutoCorrect List & Adding Bulk Entries into AutoCorrect