Hello,
Sometimes, customer want to change current model file with another model file. Once the model file is deleted on system definition, mapping infomation related to deleted model also disappear. To workaround this, we have to export map info, then delete mdl file and add new model, and then import map info...but this process sucks.
To save our time, I want to suggest "replace" function as below. When replace the model files, map info for the same inport/outport are kept.
Saku