I have another suggestion associated with the insertion of dummy variables. As I know, currently dummy variables can be added through "add var" window by entering a formula. 

As dealing with dummy variables is crucial and common in time series analysis, is there a possibility to add them in such a way as setting sample through "set range" window? (i.e. by clicking a mouse and setting dates).

My opinion is that this option will speed up the process of estimation making gretl more faster and more "user friendly".

Manny