The number assigned to the pin consists of a fixed part and a variable index. In this box the fixed part of the number must be specified using the character '%' to indicate the position in which to insert the index. The index will be appended to the prefix if its position is not specified.

The number assigned to the pin consists of a fixed part and a variable index. In this box you can specify the initial value of the index to be hung on the prefix. If the value does not represent a number then the index will be alphabetical rather than numerical. The value of the index is automatically increased by one, you can specify a different value for the increment by separating it from the index with a comma.