Earlier this year I reported a bug in Creator 2.1 whereby if you have a workspace with both a bootloader and a bootloadable project in it, then editing can be cludgy and the processor gets hogged, with Creator constantly re-reading the bootloader.hex file.
This bug was confirmed with the support team at Cypress.
I just want to report that the behaviour is still there in the new CP4 release. No suprises really since it's just a component pack rather than a core product update.
I'll post another thread in this forum on how I got around this issue for the time being.