Changing multiple BPM value for a whole playlist / genre

Hi

I have DDJ1000 with Rekordbox on particularly genre's I don't want Rekordbox to be able to read the BPM value for the track I want to preset it myself so I can beatmix a whole particular playlist/genre.

I have tried updating the ID3 tag and info section on the whole file even locking it but it still pulls it from the grid beat section.

I know I can edit each file one by one / manually with the grid edit section and going into the "Enter a BPM value" but this will take forever with the amount of music I have in each particular genre / playlist.

Is there a way to do a multiple hit of "Enter a BPM value" across this whole genre /playlist and it saves.

NOTE: I have used VDJ the latest one and it pulls the BPM from the ID3 tag so it's each more easier and smooth to do that so is there a way in Rekordbox to do the same or similar.

I am open to many ways of suggestions rather than editing each file individually which is just silly.