This is a multi-purpose category that similar to Temperature, Humidity, or Active Power. In BEMS, Other(Current Value) might be a energy rate (e.g. Active Power in Kilowatts, or Reactive Power in VARs), flow or any measurement.
The only selectable fields are Item Type, Item Name, Description , Resource Type and the Other(Current Value) measurement field.
There is no Rate associated with a Temperature Item. It is not used in any Cost calculations.
Select the Other(Current Value) field, then select a Tagname from the Tag List pull down menu.