Hi. If you click on a dimension in your drafting, go to LEADERS, go to CUSTOM TEXT POSITION, you can force the text to be horizontal and centered, however why should I have to do this manually for each drawing?
you will want to set that at the document level in you drawing templates. then all new drawings will be that way. and you can also save the "drafting standard" uot to a file, and load it into existing drawings (which will updated the location of existing dimensions, that have NOT been overridden by the custom text position)