I'm sorry for a delayed reply.
Indeed, 2TC features are now added to Plagiarism Detector.
Additionally, you can use it to check against a folder, not a single file.
You can have a two-tabs comparison by pressing on the "resource" in the report generated (for example, that one after the detected fragment).
There is no ability to adjust the plagiarism threshold on the fly now. I will poke our RnD about this.
Usual 600-word Demo limitation is active for such a check. You can contact us for an extended Demo without this limitation, if you like. You can still get a side-by-side comparison in the report.
We understand that the usual limitation of 600 words can be a hard one, we may re-consider it. But we also have some serious reasons for it.
Please send an e-mail to our support for an extended Demo before you buy it.