Vorker drafts the proposals, outlines, invoices and follow-ups IT training firms write after hours, and flags syllabus changes to past clients. You approve it.

No. Every proposal, invoice and email is prepared and then waits for you. You can read it, rework the outline, reject it, or approve it and schedule it to go out later. Nothing reaches a client on its own.
It drafts from your own past outlines and how you scoped similar courses, so the structure and depth are yours. Treat the first draft as a starting point: you stay the subject-matter expert, it just stops you starting from a blank page at 22:00.
Two-trainer firms get the most out of it, because every hour on proposals is an hour not taught or sold. Vorker is built for businesses of one to ten people, not for training departments with a sales team.
You tell it which certifications your courses target, and it watches for syllabus and version announcements. When one lands, it drafts the update offer to the clients who took that course, and the draft waits for your approval like everything else.
Photograph the venue invoice or the catering receipt and it is booked with the tax split out and the image attached to the entry. Costs are filed against the course, so you can ask what any cohort actually cost to run.
No. You type or say what you need, the way you would brief a coordinator, and Vorker works inside the tools you already have: your email, your calendar, your files, your accounting.