[Gretl-users] weights in system estimation?

Dear Gretl users, I have a question about system estimation and a (possible) bug report. The question is: is it possible to include weights for observations when estimating a system of equations in gretl (with sur method for example)? I've read in the command reference that the supported estimators are ols, tsls, sur, 3sls, fiml and liml. However, if I estimate the system using the "simultaneous equations" dialog box, there is also wls as one of the proposed estimators (but it's not possible to specify a weight variable, so maybe it does not perform a weighted regression after all). The possible bug occurs after the estimation of a system using method SUR. In the results window, the command "Tests -> Normality of residuals" is active, but nothing happens when I click on it (gretl does not crash either). I'm running gretl 1.10.1 on Windows 7, but I had the same problem with the previous release. Thank you and best regards Simona