[Gretl-users] Dataset handling in gretl (IDs, labels, standardization)

Dear gretl community,   I am using  gretl and, recently, a number of issues came up when I was preparing a cross-sectional dataset for analysis. Specifically: (1) Within gretl, is it possible to change the ordering of variables, and keep i.e. save this changed ordering? E.g. is it possible, in a dataset with 10 variables, to assign the variable which currently has the ID no. 7 another ID, e.g. the ID no. 2? I am asking because I often use gretl to "push" datasets into R, and it is convenient to have them ordered as desired when they appear in R already. (2) Within gretl, suppose a dataset contains observation labels e.g. company names. Is it possible to remove all observation labels from the dataset so that there are none? (3) Finally, I would like to standardize the regressors (not the dependent variable) in my dataset, such that each regressor has mean 0 and standard deviation of 1. Is there a "summary way" to do this e.g. by declaring the dataset to be a matrix, then operating on this matrix using some matrix operators? Could anyone provide an idea how to resolve these issues, please? I'd appreciate this a lot.   Thank you very much. Kind regards Beek