You can train your staff at any time with Bemacash without affecting your live database (with inventory and sales history) by switching to training mode on the register.
On the Settings page, tap on the TRAINING MODE option and then on the SET MODE button on the top right.
Select option "On", as shown below, and Accept.
Confirm Training mode activation.
Selecting "New" on the dialog box below will allow you to create a new database from scratch (zero inventory items, no hardware configured, etc). Selecting "Current" will create a snapshot of the current configuration and database to use a start point for the Training Operation.
When done with training, you can go back to live operation by switching the training mode "OFF" in the Device Settings.