diff --git a/crpptbx/AUG/gdat_aug.m b/crpptbx/AUG/gdat_aug.m
index 6408b3ec27581c37046e73815d63e900c2af52ed..3f9caaf6daf6aed7b5a080acb7e212d74f75cd50 100644
--- a/crpptbx/AUG/gdat_aug.m
+++ b/crpptbx/AUG/gdat_aug.m
@@ -49,6 +49,12 @@ function [gdat_data,gdat_params,error_status,varargout] = gdat_aug(shot,data_req
 %    a5=gdat(32827,'ip'); % standard call
 %    a6=gdat(32827,'ip','Opt1',123,'Doplot',1,'opt2','Abc'); % standard call with a few options (note all lowercase in output)
 %    eqd = gdat(33134,'eqdsk','equil','IDE','time',2,'extra_arg_sf2sig','''-ed'',2');
+%
+%    ip=gdat(shot,'ip'); % will show in ip.gdat_fullpath the effective signal used. In this case it is similar to ask:
+%    ip=gdat(shot,{'FPC','IpiFP','AUGD'}); % or ip=gdat(shot,{'FPC','IpiFP'});
+%
+%    so any signal can be loaded by giving the diagnostic, signal name and experiment, etc
+%
 
 %
 % Comments for local developer:
diff --git a/crpptbx/gdat.m b/crpptbx/gdat.m
index 2f331445e896e4206e52bcae96df66d87ea466c0..dc235198b43648ecf7880d6b80344b1d2700aeb2 100644
--- a/crpptbx/gdat.m
+++ b/crpptbx/gdat.m
@@ -49,7 +49,9 @@ function [gdat_data,gdat_params,error_status,varargout] = gdat(shot,data_request
 %    a4=gdat('opt1',123,'opt2',[1 2 3],'shot',48832,'data_request','Ip','opt3','aAdB'); % all in pairs
 %    a5=gdat(48836,'ip'); % standard call
 %    a6=gdat(48836,'ip','Opt1',123,'Doplot',1,'opt2','Abc'); % standard call with a few options (all lowercase in output)
-
+%
+% helps for specific machine: help gdat_tcv; help gdat_aug, help gdat_jet, etc
+%
 
 %
 % Comments for local developer: