For example, if you connect 3 processes that each have one output cell, to a Select process, you might use only one of the three incoming cells as the actual data input for the Select process, but you can use the attributes of the other incoming cells to specify the output cell size for the Select process. A solid line connects the process whose output cell is actually used by the Select process; dotted lines connect the processes whose output cells are not used as data input but only have a temporal relationship with the Select process.

Use the Limit output cell size based on sizes of input cells checkbox to specify the input cells whose size attributes you want to use for limiting your current process's output cell size. Some of these options act in conjunction with the Limit output size to value that you specify.