Displacement can use a reversed flow direction. Instead of using Langmuir isotherm, the second-order kinetics is used. This software can also be used to simulate size-exclusion chromatography. This software can be used to simulate gradient elution. It uses the eluite-modulator relationship proposed by Melander, et.
Elution can use an inhibitor.
After execution, data containing time vs. concentrations of each component at column exit are produced. You can use this data in Microsoft Excel, for example, to plot a simulated chromatogram. All the simulated chromatograms in the aforementioned book and my publications were produced this way. Click here for the explanation of the numbers in the data file and in the result file. The data in the result file were directly used to plot the simulated chromatogram shown above using Microsoft Excel.