I removed this video (it's as unlisted now) because I updated the extension. I added new features so the UI is not looking the same as before and I didn't want to make any confusion.
Usually manually, by masking certian areas. Look at the video
Function for removing visible patterns works in a random fashion. You can specify the min and max angle but in addition it randomly moves the texture on X and Y coordinates to further remove that visible patterns that sometimes occur when tiling a seamless texture. So if you use it to remove the patterns from the texture on a diffuse map you would have to generate new reflection or what ever map you need for that diffuse map. One good workflow is to use shader map or other similar software to generate all maps from the diffuse map.
I would like to repeat exactly that steps to another image.
Thanks in advanced!