To create a keyboard drawer, follow these steps:
Create a horizontal partition by adding a shelf, and change its height to fit only the keyboard
Add a drawer into the partition.
Select the partition.
Look for the menu labeled "Partition" 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 partition.
Within the "Partition" menu, go into the "Quick Access" or "Customise" tab and you will find the "Add drawers" section.
Input 1.
Switch off its drawer fascia and switch off the front panel:
Please refer to the below link