I am working with the graphical planning board in SAP. I have tried to make a recording of buttons pushed in the planning board and especially also in the print view, as we have to set these parameters manually every time, but the system does not seem to pick up these buttons.

If the button click is not recorded by GuiXT it is not a normal dynpro pushbutton but a special control. You can either use the "Native Control Interfae" of GuiXT Controls, or you use "SAP GUI Scripting". Please see the corresponding sections in  our "Tips, Tricks and Samples".