- At the Command prompt, enter AMOPTIONS. 
 
- In the Options dialog box, click the AM:Standards tab. 
 
- In the Standard Elements list, double-click the root node (the standard name). The Standard Settings dialog box appears. 
 
- To change the text height, in the text section, in the Base height box, select a text height. 
 
Note:  If the current drafting standard is a custom standard or if the Link to Dimension Style check box is selected, you can do the following additional operations: 
- Select a text style from the Style list. 
 
- Click in the Base height box and type any text height.