As other has told you, hiding doesn't really exist as a concept in this case. But if you want to remove many variables at once there are some tricks. *Remove all variables between (and including) the variables named below;
data x;
set sashelp.baseball;
drop nAtBat--CrBB;
run;
*Remove all variables starting with cr. We can use the : as a wildcard, but only "ending with".;
data x;
set sashelp.baseball;
drop cr: ;
run;
*Remove all variables of one type. ;
data z;
set sashelp.baseball;
drop _char_ ; * or use _numeric_ ;
run;
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