Step 1: Tap on the company avatar to enter the Company screen. From there, scroll down to the User Access Group 

Step 2: Press the key button to assign the privilege

Step 3: Press the pen button

Step 4: Select any access you would like to give and tick it.

Step 5: To add employee(s) into the access group, tap on the "human" icon as shown on the screenshot of Step 2. Select the employee and save the changes.

Now your employee has the access to manage the company based on the access assigned.