In my implementation setup test I created a new multi-pick field via the Customisation Modules & Fields section in CRM module.  But it was of the wrong type so I want to delete it but I can’t.  I can’t even remove it from the layout screen (as per in red box in attached graphic).  It does let you choose to delete but it just stays there.  In fact all the fields I am not really interested in displaying I have moved to a new section as per in orange box in attached graphic but I can’t seem to hide any of these fields or remove the whole section from my view (called ‘Client Mode’).  Any clues on how to achieve this?