WHMCS Connect - open server in new tab/all server types
Modify/replace WHMCS Connect such that it behaves more like System Settings > Servers page
On this page if you use the "Login to WHM" button - it opens a new tab into WHM of that server
(which by the way works consistently with all browsers, whereas WHMCS Connect utility only works in certain browsers)
Then, why limit to WHM - the "System Settings > Servers" page also allows you to connect to other types of servers.
By creating a page/utility that has a "connect only" function to all server types and opens servers in a new tab/window, it allows the user to click and connect to multiple servers easily and work on multiple servers simultaneously without having to manually open multiple WHMCS connect tabs.
Less clicks = faster response and more efficient support.