It's the number of entries (lines) on the left side, any entry can have one of several keywords, whose result end up with any numbers of tabs, even more than 50 if you choose several appropriate definitions.
The entries on the left side ARE the keywords.
Sorry for the confusion, I wasn't clear enough. OK, I'll try again. You can have more that 50 words in your keyword entry list, as many as you want (several per line, even repetitive keywords), as long as you have no more than 50 lines altogether.
For example, for repetitive keywords iif you have a picture of a toast, one keyword can be 'toast', another one 'french toast', another one ''stuffed french toast', another one 'continental breakfast' (I wish...!). The total for this example is 4 keywords.
GeoPappas, I hope it makes sense now
