Please note that you must be an account admin in order to change a team member's role.
To change a team member's role, please visit your Lusha Dashboard.
Invite the user you would like to set as "Admin" to your account as explained here.
If the user is already a member of your account, skip this step.
Go to the Team section in order to view a list of your current members:
Click on the (●●●) button next to a user you wish to change and select "Set As Admin":
Refresh the page to verify that the user's role was changed to "Admin".