Sub_selection

SUGGESTED

Hi,

Is there a way in CRM to make sub selection lists?

For example, I have a field called segment (out of the box) and another sub_segment (I created this). When the user selects the sub_segment list only the related items should appear and not the entire list. In this case, if I select IT in segment then in sub_segment list only the first 4 related items should appear (i.e. transport should not appear). 

Segment Sub_segment
IT Software Provider
Hardware Provider
Networking
IT Consultants
Transport Shipping