Validation button for parameters in right upper window
A validation button to replace the former confirmation by return. In this way, several input parameters, like ki,QH,QK,QL or A and B can be changed at once, which should be easier for handling, especially when instruments are switched.
The validation button should be compulsory. As long as modifications are not confirmed by the validation button, other operations, like mouse tragging, should not be permitted.
An error message would be ideal in this case like 'Validate new input parameters'.