Allow to expand the value of the ECCMX Activity Code or without maximum value.

The ECCMX Activity Code limits to 10 the maximum value of versions per product in the MRP process, which is an important limitation in some cases when product versions are managed, and it is  not modificable by user interface giving the message that it is only upgradeable through a new version of the X3 product. I have this problem in several of my customers.

I think that the version management should not have this limitation, which I give as a suggestion in case it is taken into account.