AWE - Restrict Submit Journal Selection

Hello,

We currently use Process Security and Process Groups to restrict one set of our users to Editing Journals and a second set of users to Posting Journals. We are close to implementing the delivered Journal Approval Workflow to where the "Posters" would approve and post JE's within the system. However, we would like to prevent our Posters from being able to submit a JE for approval as only the person(s) Editing a JE should submit them to a Poster.

By using Process Security on the GL_JEDIT and GL_JP processes, the options to perform an Edit or Post in the Process dropdown on Create/Update Journal Entries throw error messages. Can something similar be done on the "Submit Journal" process option on the Create/Update Journal Entries page? What about in the GL WorkCenter's "Submit Journals for Approval in Mass" My Work link?