To insert an external conref to an existing target at the current cursor position, do the following:
on the toolbar.
In the Insert External Conref Dialog, specify the target file one of these ways:
From the Files list, select a file.

To filter the files by type, select a type from the File type drop-down list.
In the Path field, type the path to the target file.

It is also possible to type the reference to anything within a topic, using the following format: filename.xml#topicid/elementid.
Press Enter to apply the typed path.

From the Targets list, select the target.

You can see the list of available targets in the current document.
To filter the targets by type, select a type from the Show types drop-down list.

You can also check the Close on Insert checkbox, and then click the Insert button.
Figure 1. External conref inserted.
