I am wondering if the Class Library Manager in Blocs 5 is available only within the Plus package and why it is not available in the regular Blocs 5 version as this was the case in Blocs 4.
Can someone confirm that this feature was pulled out from the regular Blocs 5 and it is only available for us if we pay more for the Plus package?
No The Class Editor and Class Manager are features of Blocs Standard and always have been. The Class Library Manager has always been Blocs plus, this lets you use classes between projects.