[1.2.229] Cash Trading room?

To someone who knows what the various widgets in the UI do, what are the boxes with the gray arrows for? I noticed those recently appeared in GMS' Trade window, but they never seem to do anything.

They make numbers easier to read in the Korean language. For example, 만 means 10 thousand, so 10만 would be 100,000. Just an easier way to see numbers, but of course, in GMS it does nothing since English doesn't have those abbreviations.