User Defined Functions and Procedures can be used repeatedly in the same layout after placing them Global area. Is there anyway it could be used by other Layout of the same application without placing it in the Gobal area of that Layout. May be something like #Include switch. If it can be, How? Does it save any time in compiling the code?  Thank you.

Thanks Ben, for clarification. Is there anyway we can just include the procedure part or the Function part with #Include? What is the syntax of including the file with #include ? Thanks.

Suggest keeping your own functions in your own file vs adding them to "sbasic_include.sbas"

That will protect your functions from being overwritten by a new sbasic_include.sbas file with a Sesame upgrade.  Putting them on a shared folder will enable all network users to use the functions in a single file.

So you can have two Includes, one for the std Sesame file, and one for your own file:
#include "sbasic_include.sbas" will include the complete contents of sbasic_include.sbas
#include "sbasic_myfiles.sbas" will include the complete contents of sbasic_myfiles.sbas where you have your functions stored.  If the file is not in the same path as "sbasic_include.sbas", then include the full path.