Build menu row resetting to start after making a selection

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When I use the arrow buttons to scroll through the build menu row, when I click on a unit/building to the far right, it resets the row back to the start. For instance, when selecting a PD, it will reset the row to the beginning.

Another example is if I am making a factory queue, and I click on a unit that is on the far right of row, I have to scroll through the build menu row to to click on it again, or other units that were next to it.

Is there a way to stop this from happening?

Also, is there a way to hotkey the build menu scroll arrows?