After purchasing this addon, from the side menu in Casper you will be able to add as many Snapchat™ accounts as you like by pressing the ‘Add Account’ button in the Managers section.
You can quickly switch between the accounts you have added to Casper by pressing the drop down arrow at the top of the side menu.
From the login screen in Casper, the toolbar at the top of the screen will contain an Accounts button. Pressing this button will allow you to select an account to quickly login to.
Please note, because notifications can only be polled and not pushed, at this point in time. Only the currently selected account will check for new snaps. All other accounts will not do anything.
Please read How to Purchase Addons before making your purchase.