This function will help you if you want to place a door across several volumes in your furniture To link.

First drag doors over the desired volumes.

Select the two doors while holding CTRLbutton off.

Click on To link in the top menu bar under the tab Extras.

The doors have merged into one larger door.

Alternative:

The function volume (Key V) can be found in your menu bar in the tab “Home

Both partial volumes are pressed CTRL button selected.

Now drag a door over the selected volumes.

Complete!

 

This process can also be used for other elements, such as shelves or construction shelves.

Linking doors