Hello rfh ,
Thank you very much for using our software and visiting EP forum.
1.If just want to protect the scenes of your tour , then you needn't to use password ,because TW can protect the scences itself.And it is very easy to do, when you publish the tour;please click[Flash VR] option in the Publish Setings'window >> then tick the [Copyright Protection by Image Encryption],and the last step is to click Publish
2.If want to protect the whole tour and claim it's copyright .For exaple when view the tour ,you want it, will pop up a clue text like"This tour is create by rhf", you just need to add a pup up window and then put a text box in it and type the words in the text box.
3.If the above two answer are not what you want ,please just let me know and I will try my best to find a solution for you.
This is donald from easypano,welcome you to use our products and visit our forum.