\image html unionoftwotriangles.png
</li>
-<li>Enter the ID of the required edge in the \b Edge field or select
-this edge in the 3D viewer.</li>
+<li>Enter IDs of nodes forming the required edge in the \b Edge field
+ (the node IDs must be separated by a dash) or select this edge in
+ the 3D viewer.</li>
<li>Click the \b Apply or <b>Apply and Close</b> button.</li>
</ol>
<br><b>See Also</b> a sample TUI Script of a
\ref tui_uniting_two_triangles "Uniting Two Triangles" operation.
-*/
\ No newline at end of file
+*/
