This function is a means to get help on a specific method of a given object.
AFT::Help - method for any xff type
FORMAT: [helptext] = obj.Help([methodname, onerror]);
Input fields:
methodname if given, only the help for one method is returned
onerror checks global flag and only returns help if requested
Output fields:
helptext 1xN char array describing all (or one) method(s)
TYPES: ALL
% loading a protocol prt = xff('*.prt'); % getting help on the prt.CreateSDM method prt.Help('CreateSDM')