Collapse/Expand Markup
The Collapse/Expand Markup command is a toggle command, which collapses and expands the selected tag. It can be applied to any kind of tag: node, predefined format, SPS mechanism, etc. To collapse/expand a tag, double-click the tag; the end tag of an expanded tag may also be double-clicked to collapse that tag.
The screenshots below show how a series of tags are collapsed. Double-clicking a collapsed tag expands it.
![SS_ExpandCollapse1](./images/ss_expandcollapse1.png)
![SS_ExpandCollapse2](./images/ss_expandcollapse2.png)
![SS_ExpandCollapse3](./images/ss_expandcollapse3.png)
![SS_ExpandCollapse4](./images/ss_expandcollapse4.png)
Collapsing a tag can be useful for optimizing the display according to your editing needs.