This is from a native speaker who teaches a practical way for removing mold over the silicone sealants in bathrooms. how to remove mold (see 1:11-1:12) He says:
"I'm going to do the same all the way along".
If I understand correctly, he, by saying ".....all the way along", means laying the paper towel over the mold in the form of a thin line. But I am not quite sure about whether he simply means this or the word "along" gives also a meaning "..... until the point where the mold ends."
So, as a non-native speaker I am not quite sure whether "along" gives a meaning of "in the form of a line" or "in the form of a line until the very end".
So, does it mean;
1-"I'm going to do the same all the way in the form of a line".
2- "I'm going to do the same all the way in the form of a line until the end of the line".