Select the drawer you want to change the height for.

Look for the menu labeled "Drawer" on the right of the design panel. It would be arranged in a vertical order as Cabinet>Partition>Drawer Systems>Drawer> Panel etc. Click on it to access the settings related to drawer.

Within the "Drawer" menu, go into the "Quick Access" or "Construction" tab and you will find the "Dimension parameters" section. Click on the drop down next to it to open the details.

Under "Other Parameters" you can see the current depth of the drawer and when you click on the drop down option next to it you will get an option of "Drawer Reduction".

Input the value in mm to specify the reduction needed in the drawer depth and the drawer size will be revised.