Rpg Maker Developers Group

I would like to begin by saying that this is only my second time posting to this forum and using forums as a whole. In the last post I made, I was corrected by a developer, saying that I had posted my question in the wrong category and was kind enough to move my question thread into the RPG Maker VX Ace forum. I apologies and will try not to do it again. This SHOULD be posted in the RPG Maker VX Ace forum now, but if not then sorry in advance and please let me know how to fix this issue.

Speaking of issues, I have a question to ask. I tried searching the site and online to see if there was already a solution but I couldn't find anything relating to my topic and even then, i'm not entirely sure how to phrase it. What I want to do is when the player is given a choice, instead of the option being highlighted with a transparent box, I want it to instead be an arrow or something to indicate what choice the player is making.

...Even that description makes it sound complicated. I have made a mock up image of what i'm talking about, hope this helps explain it: 

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