What DCRUM version are you using? I know that they changed the locations of some of the buttons in v12.10. Something might be all the way at teh top where in the past they were at the bottom. Please let us know the version you are using so that we can help you out further.
I am using version
RUM Console - 12.4.1 - 1459
But I think it is my own mistake, the csv to import must be 100% ok. If there is an error the button will be pale grey and can not be used,
Thx for you response!