Default settings?

[RichardAnnema]

There's no specific default settings file for Brazil; maxstart.max -would- typically be the place you set these things.

You could do something with scripting, a la:

callbacks.removescripts id:#brazil_defaults
callbacks.addScript #postRendererChange "
    if ((renderers.current.classID as string) == \"#(95494396, 474502030)\") do (
        if (getAppData trackviewnodes.brazil_r_s 399 != \"defaults set\") do (
            -- set defaults here
            -- example start
            if (queryBox \"Do you wish to apply custom default Brazil settings?\") do (
                local brz
                for i = 1 to 4 do (
                    brz = trackviewnodes.brazil_r_s[i]
                    local brz_is = brz.Sampling_Parameter_Block_Holder
                    brz_is.aa_min = 1
                    brz_is.aa_max = 2
                    brz_is.clamp = 1e6
                    brz_is.filter_name = \"BrAreaFilter\"
                    brz_is.filter_radius = 0.001
                )
                -- example end
            ) -- querybox
            setAppData trackviewnodes.brazil_r_s 399 \"defaults set\"
        ) -- check appdata
    ) -- check renderer classID
" id:#brazil_defaults

..sticking that into a maxscript file in your <max>\scripts\startup\ folder.
Unfortunately the #preRendererChange callback already shows the trackviewnode as existing, so preventing the defaults-setting on existing files (which won't have the appdata marker) would need some further pondering.