Yes. When you create your free account in SciNote, Manuscript Writer add-on will automatically be activated for you. Once your data is organized in SciNote by projects, experiments and tasks, Manuscript Writer will be able to give you a head start for your writing: a draft of your manuscript!
The number of drafts you can generate is limited to 5 for the free accounts. If you are among the Premium users, you have unlimited number of drafts.