### 3.5 Auto Split

When working with a large signalling chart, it is sometimes needed to zoom in to an area of it. In case the viewing area is towards the bottom of the chart, it is often difficult to know which entity line belongs to which entity. In such cases turning Auto Split on will result in the splitting of the view into two parts, the upper one showing the entity headings. If zooming is applied Msc-generator always attempts to resize the upper view part to show the entities only.

Note that it is possible to define charts where there is no meaningful row of entity headings at the top. In such cases, Msc-generator will get confused and Auto Split is of no use. In case of multi-page charts, Auto Split will show automatic headers only (Instead of ‘`newpage; heading;`’ use rather ‘`newpage [auto_heading=yes];`’ command.)

Note that you can use the slider to change, where the chart is split, both with and without Auto Split. The difference is that when Auto Split is on, the split is reset to headings after a compilation or a page change.

Auto Split also works in Full Screen mode, but is available only for signalling charts.