Can I add a personal table for an employee?

Yes. First, create a table with the necessary columns and filters. See how to do it here.
If you have not created an employee in the service yet, add one. See instructions on creating an employee here. If the employee has already been created, then open his settings. Set Can view own tables checkbox. From the list of tables, select the table created on the first step.
Here you can also set what actions an employee can perform with orders.
In the table, you can add a trigger button for the employee. Read more about this here.
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