Make Link option grayed out in Dreamweaver
In Adobe Dreamweaver 21.0 and 21.1, you may be unable to insert or add a new link to text in the Design view. For example, when highlighting text and clicking Edit, View, and Link, the Make link option is greyed out and not clickable.
To enable this option, click Window and then Properties to show the Properties window. You can also press the keyboard shortcut Ctrl+F3 to enable and disable the Properties window.
You can drag the Properties window down to the bottom and combine with any other windows to remain part of the main Dreamweaver window.
Once the Properties window is enabled, you can use the Make Link option and any associated keyboard shortcut.
Still not working
If the Properties window is visible, but you cannot insert or make a link, make sure the View Mode is set to Design and not Live. This setting is found under the View menu.