Question: Document mode. How to remove small box when typing, and remove italic style

Is there a way to remove the small dashed box that shows up while one is typing in document mode?
Also, is there a way to remove italic style from everything? I do not like italic at all. I tried many things, such as

Format > Styles. Select the 2D Input character style and click modify

but when I start new line, it goes back to italic.

I can also open the style sheet file (my_styles.mw) that I use, and look at the XML there. What do I need to change there to make it not used italic anywhere? Even after I changed all italic="true" to italic="false" in the XML style sheet, and reopen Maple, it still uses italic once I starts typing. Also the small box is still there.

I basically do not want italic anywhere when I type in document mode. Also, I do not want to see the small dashed box, and I'd like the cursor to be upright, not titled as it is now.

Any help is appreciated. I am using Maple 17.02 on windows