If your project does not support a tri-pane design, you can add an index control to a topic to make the index file available. The index appears when the topic is opened with the index control.
1)If the topic is in a subfolder, copy the index file (HHK) to the subfolder.
2)In the Design Editor, open the topic with the control.
3)Click where you want to add the index.
The index control appears.
To test the index control, compile the project. The index control displays the same index as in the final output.
Version-control projects may have more options.
tip: You can use other index files in your project. Copy the HHK file and associated files (topics, images, multimedia) to select the HHK file with the index control.