Several related item in reference to holes on the drawing, in reference to the image supplied.
1) holes at angles to not respond to the Dimension Diameter button. Only hole planar to the drawing surface do. This also include to trying to add a center line to the circle. Reference yellow Box in image,
2) You need to use a text leader and thus fractions show in a smaller font (yellow box) that from the Dimension Diameter button (red box)
3) if you try and copy the larger font fraction and add a symbol (Diameter) it does a drop character
4) I can get a full size fraction put it look like 16 3/8in. Note if I add a space between the 8 and the i it converts to the smaller fraction (yellow box)
5) The program supports 1/2, x/4 but not x/16 or x/32, unlike the Dimension Diameter, does not do the switching to the smaller fraction.
Green box Dimension Diameter, yellow and red Text Leader
