Hi I have D365 development box with Pre-installed Visual Studio 2015 Professional Edition.I want to do 

Performance SDK and multiuser testing via Visual Studio Online

https://docs.microsoft.com/en-us/dynamics365/unified-operations/dev-itpro/perf-test/perfsdk-tutorial

but Microsoft Visual Studio 2015 Enterprise is require  mentioned clearly official prerequisite. 

Should i upgrade my existing pre-installed visual studio 2015 from professional to Microsoft Visual Studio 2015 Enterprise on devBox ? or is there any other workaround to do the same ??