ModelTree version 2.7.4 and later
Step Rent Editor allows you to apply custom values to certain periods (to model step rents, discount periods, or even unique lease agreement terms) for Base Rent values. To apply custom time series:
- Double click on the /mth or /year field of the selected premise item you'd like to set custom time series.
- Click this symbol
- The Payment Schedule window opens.
- Click CLICK TO ADD NEW
- Enter the Step name, Start Date, End Date, and Value of a new step. Dates are automatically adjusted (the End Date of the previous Step is adjusted after the Start Date of a new step is entered). The default step always indicates the lease agreement Start Date (or Analysis Date) and End Date. The right-hand side white part of a window shows you custom time series of new values.
- After you finished entering all steps click Apply.
Custom Base Rent is marked with this 
symbol. Items without this symbol are forecasted by ModelTree calculation logic (including all other assumptions like Discount Period, FX Rate Corridor, Indexation etc.). You can always check what scenario was set for a custom base rent item. Just open the Payment Schedule again (as described above).