Hello Danny
You may do each of the modular courses at a different FTO:
CPL
IR
MEP(L) Class Rating
Theoretical Knowledge
and, if you need it, MCC
The majority with do the CPL, IR and MEP at one FTO. It won't cause you any problems doing them at different FTOs, but I'd have thought it might make it a little more challenging to get used to different aircraft, airports, operating procedures and instructors, not to mention the hassle of finding different places to stay, etc.
I'm not 100% up to date on the commercial aspects, but I suspect that if you look closely at the courses offered there are incentives offered for doing the 'full suite' at one FTO.
With regard to an employers' view, they might ask why you moved around a lot. That is because people who struggle with their training often do that; presumably on the assumption that they can improve their performance by moving (which is usually not the case). However, if you have a good reason I cannot see why it should be an issue.
Why are you considering it?