If you have generated your compilation but it is not showing up in the outgoing submittals area, please check the following.
The Compilation has been linked to the doc code?
Is the Doc Code Type set as a "Compilation" and have you linked it to the Compilation?
To link a compilation to the doc code, simply click the paperclip icon and choose the compilation to attach.
Is it available for submittal?
On the code list, under the tools column is an icon that when enabled, the compilation cannot be submitted until all documents are in fully completed status. To disable this, simply click the icon to allow the compilation to be submitted at any time, regardless of document statuses.