Hi, CAD2015:
Your dim. R5.00 is created with ISO drafting standard. If you switch it to ANSI (or ASME) standard, this dimension will become R5.
To change drafting standard, you use these menus below:
1. Click System Option;
2. Click Document Properties;
3. Change Drafting standard to ANSI;
I'll let you know if I can find exact attribute that control this behavior. Meanwhile, you can play with dimension styles.
Best regards,
Alex