Ok, thanks. This makes it a bit clearer.
I assume you can allocate more than one code per project according to how the charging type differs.
Can I have more than one code for each project?
I also assume you can add a different code within a project whilst a project is in use, depending upon how the work needs to be charged?
If so how do I add a code to a project?
and
How do I select a different code?
Thanks.