Customize Standard Forms in BCM

[Steve - SGD]

Hi
This is (possibly) a very easy question to answer but I can't seem to find a
solution.

I have customized the BCM Business Contact form and added new fields but I
want to remove the standard 'Business Card' shown on the form to give me more
space but I can't find out how to do this.

I also want to reduce the number of lines in the Products and Services
region of the standard Opportunities form. It shows about 15 lines as
standard but I only need 2 or 3. So a way to do this would also be
appreciated.

Any advice or guidance would be greatfully received.

Thanks
Steve