Why does the number of keywords decrease when using the option "Copy keywords from clipboard to selected images, shuffling the latter"?

Question

Photobanks

Why does StockSubmitter reduce the number of original keywords when using the "Copy keywords from clipboard to selected images, shuffling recent images" option?
What then is the point of typing 80 keywords if, as a result, they are cut off?

Answer 1

From 80 keywords, the first 30 are taken and placed in all selected images; and from the remaining 50, 20 pieces for each image are randomly selected and added to them.
64 is the total selected words for all selected images, because you still have them selected.
Deselect and select one at a time - there will be 50 keywords each.