Serna allows editing very large documents by collapsing portions of them. Serna estimates the size of a document on opening it in WYSIWYG mode. Large documents are treated according to the user's preferences: open either normally or collapsed.
You can specify the rules of handling large documents:
To call up the Preferences Dialog, choose .
Figure 1. Folding tab.
To set what document should be considered large, specify the number of pages in the Treat document as large if it takes more than ... pages spinner on the Folding pane.
The default value is 50 pages.
To set the rule of handling a large document on opening, select a radio button on the When opening large document pane: