Begin of the insertion**As**End of the insertion Begin of the deletion AsEnd of the deletion an Enterprise user,
Begin of the insertion**I want**End of the insertion Begin of the deletion I wantEnd of the deletion to have the option to limit cost types for certain Begin of the insertionprojects
**so that**End of the insertion Begin of the deletion projects. So thatEnd of the deletion these are only available in certain projects.

One could imply this function similar to the custom fields. Here one could add in the administration, in the Begin of the insertionsectionEnd of the insertion Begin of the deletion sctionEnd of the deletion time and costs under cost types, columns (similarly as with the custom fields) in which can be indicated whether these can be used across projects, or project-specifically.