How many shades can I add to the TaHoma Switch?

For Zigbee technology, 

• The Tahoma switch is able to handle 6 shades within a 23-foot range without smart plugs being added.    
• If there are more than 6 shades or shades outside of the 23-foot range, smart plugs must be added to the system.

For Radio Technology Somfy (RTS) technology, 

• A TaHoma switch has up to 40 channels available for a maximum of 200 per system if multiple TaHoma Switches are present.  
• Smart plugs are not used with RTS products.