You misunderstood. This program makes a loop from a certain texture, and it does not give the opportunity in real time to draw on a looped texture. What would you draw on one part of the image, and all the other looped textures would also change. Thus, you can make a normal looped texture and not a mirror looped texture. It should also be somewhat a drawing mode: (I use a texture from World of Warcraft for example.) Infinity(Infinitely in all directions)
Square Mode(and other 2x2/4x4/8x8) Line(1x4/1x8) and (2x4/2x8): But in the end edit my texture is not 2024x2024(or other size) but only 256x256. After all, I just looped it but did not change the size. Sorry im use Google Translate.