Support for external increments
A strong part of Valentina is the ability to allow recreation of a pattern based on new input data. Usually by input data we mean only measurements and less often increments. Increments in current implementation are more static because require manual editing. By design increments are part of a pattern algorithm, thus part of a file. But this approach can be improved. There are already few cases when just by changing increments a pattern maker can produce a completely different pattern. Moving these variables to the measurement file is not an optimal solution, because require to mix a customer data with pattern data.
Creating a new format for external pattern increments (EPI) is an obvious solution. We already use this approach for measurements, piece labels and watermarks. But in this case we must keep backward compatibility with current implementation. Forcing a user to move the increments to an external file and managing it doesn't look as an optimal solution. Most probably we need a function of extending or replacing existing in a pattern increments by external increments.