Creates two Percolator input files, one for peptides without open modifications, and the other for peptides with open modifications. Each file can be given to Percolator individually, to calculate FDR independently on each type of result. Setting the value to 1 activates this feature. Setting it to 0 deactivates this feature. By default, this feature is turned off.
1.0.0 - present
split_percolator = 1