Adding user adjustable inputs to a custom scan

Dynamic filters for my parameters from my code  ( after ” Study | Custom… ”  )

Hello, dear Pete Hahn.
Please tell me,
how to correctly make dynamic filters from
my script from the tab
” Study | Custom… ” -> “thinkScript Editor” for 2 parameters
(integer numbers), without opening the code and without changing these
2 parameters directly in it (in the code, from the tab “thinkScript Editor”),
instead of the first line of my code, after the word ” Study | Custom… “
make 4 components: “parameter  A :”   1     “parameter  B :”    2  ?

etc my code from “thinkScript Editor” :

input parameter_A = 1
input parameter_B = 2
#   …    next code to end

Best wishes from Dmitry.