TP-Link TL-SF2226P - Manual (Page 15)

TL-SF2226P+/TL-SL2226P+ Remote Smart Switch User Guide
Open the group you added just now and click the right button on the device name,
then there will pop up a menu. As figure 5-7.
Figure 5-7
Click Add Dev/ Node, you will see a dialog. As figure 5-8.
Figure 5-8
After adding device and node, you can see the interface as figure 5-9.
- 12 -