How can we improve WHMCS?

When the Plesk module creates a new account, the system user (for FTP/SSH) and Plesk login share the same username and password. This makes it difficult for the client to pass the SSH details to a third party (such as a web developer) without granting full access to the entire Plesk account.

As a hosting provider, it would be better for us if a different set of credentials were created for FTP/SSH, so they can be provided to a third party without giving access to the Plesk panel.