Bookmarks and Custom Indicators

It is common practice to have some kind of anchor in a text document like bookmarks, indicators, breakpoints, and so on. The EditControl unites all these anchors under the notion of bookmarks and custom indicators. It allows any number of custom images or bookmarks on a document, however each line can have only one indicator or bookmark associated with it at a time.

The EditControl provides support for adding bookmarks, customizing the bookmark's background, setting custom images as indicators, navigation between bookmarks and indicators, and clearing bookmarks and custom indicators.