In OTT Navigator, create Views (for example, "Sports", "Children") and attach filters to them. This will allow you to switch between lists with one click.
EPG can be loaded automatically: Settings → Data & Synchronization → Auto load EPG. If the provider provides its own XMLTV, add the link manually.
Profiles allow you to store separate settings for different rooms. Create a profile “Living room” and “Kids”, assign them different remote controls and PIN for restrictions.