Assalam-o-Alikum.
you can pass the value of two variable from form F1 to form 
F2
First you have to create the two parameter on form F2 name 
p1 and p2 and save the form. 
then you go on to F1 and write tis code on button on text 
item through which you want to send the parameter.
Declare 
para ParamList;
Begin
para:=get_parameter_list('plist') /*plist can be replace by 
any character*/
if not id_null(para) then
destroy_parameter_list('plist');
end if;
para:=create parameter_list('plist');
Add_Parameter(para,'P1',variable_1);
Add_Parameter(para,'P2',variable_2);
---after this you can add
call_form('F2');
--you can see the argument pass through form F1 to FORM F2.
end;