There is no "add another T4" option that I can see under "Employment Income". The field only allows for the uploading of one T4. I know I can upload additional T4s under "other docs", which is fine, but I'm puzzled by the fact that the Employment Income field only allows the uploading of a single T4, as if no one ever works at more than one place per year. Every year, I have at least two T4 slips, and sometimes three. It doesn't make sense that the ability to upload more than one T4 isn't provided, and that additional T4s have to be uploaded under a different section.