The most common use of Add Tabby is to insert a thread after each weft pick to accomodate a tabby pick in designs such as overshot or summer and winter.
When the Add Tabby icon is selected, a screen similar ot the following is presented. The default tabby 1 and 2 treadle are the highest treadles in the tie-up. These treadles can be changed to any other treadles.
Note that TempoWeave does not try to create a tabby pick. It assumes the weaver has defined the tabby treadles and the appropriate tieups. TempoWeave uses those designated treadles to alternate between existing weft picks (doubling the number of weft picks).
The color used for these new tabby picks will be the current palette color.