TRichView.com

I have downloaded the trial code + demos and also had a look into the precompiled demo. This last one supports editing multiple files in parallel via the tabset in the app. but I could not locate any demo source code which shows which components of the licensed package are used to do the "context switching" when changing from one edited file to a different one and back again. Is this limited to full lincense to show such demos or is this something I have to implement completely myself ? I guess that the precompiled demo is not available as source code ?

A source code of this demo is included in the trial, in the folder 3-ScaleRichView\Demos\ActionTestTabs\.
This demo uses TSRVTabSet component for switching between editors. This is a simple tab-set component, all the code for multi-document management is in this demo itself.