Today's task was to show/hide M2ePro's 'Show eBay Order' button based on permission. Earlier I had done the similar task for 'Create RMA' button which was quite straight forward. But that rewrite didn't work this time as it was an Observer.
This is how I was able to hide 'RMA' tab and 'Create RMA' button from Magento order view page.
ERROR: exception 'Exception' with message 'connection to mssql is not supported. Please download and follow directions from here - https://www.microsoft.com/en-us/download/details.aspx?id=20098' in C:\_projects\technooze\app\code\local\Technooze\Schoolbrochure\Model\Mssql.php:182
For sqlsrv_connect to work download (Microsoft Drivers for PHP for SQL Server) from https://www.microsoft.com/en-us/download/details.aspx?id=20098