It is possible for developers familiar with knowledge of scripting to add a "text zoom" feature that will enable authors to change the size of text on-screen in XMetaL. We have an example of this in XMetaL 6.0 for documents that use the "Journalist" DTD. To see it:
1) Click
Help >
Samples >
Cameras in Focus (Journalist).
2) Right-click in the toolbar and choose
Structure View Examples.
3) If the Structure View pane is not visible, click
View >
Structure View.
4) Click the buttons in the Structure View Examples toolbar

to toggle between different stylesheets for the Structure View.
The buttons in this toolbar invoke a macro to change the CSS used to display the Structure View pane. The code behind it is in the
journalist.mcr file in
C:\Program Files\XMetaL 6.0\Author\Macros . You are free to copy this code for any other XMetaL customization.