add:
{
    "hammerid" "9677615"
    "classname" "info_particle_system"
    "angles" "0 0 0"
    "cpoint1_parent" "0"
    "cpoint2_parent" "0"
    "cpoint3_parent" "0"
    "cpoint4_parent" "0"
    "cpoint5_parent" "0"
    "cpoint6_parent" "0"
    "cpoint7_parent" "0"
    "effect_name" "explosion_huge_e"
    "render_in_front" "0"
    "start_active" "0"
    "targetname" "test_boom1"
    "origin" "7232 3776 -151"
}

{
    "hammerid" "9677617"
    "classname" "info_particle_system"
    "angles" "0 0 0"
    "cpoint1_parent" "0"
    "cpoint2_parent" "0"
    "cpoint3_parent" "0"
    "cpoint4_parent" "0"
    "cpoint5_parent" "0"
    "cpoint6_parent" "0"
    "cpoint7_parent" "0"
    "effect_name" "explosion_huge_burning_chunks"
    "render_in_front" "0"
    "start_active" "0"
    "targetname" "test_boom"
    "origin" "7232 3720 -151"
}

{
    "hammerid" "9678821"
    "classname" "ambient_generic"
    "cspinup" "0"
    "fadeinsecs" "0"
    "fadeoutsecs" "0"
    "health" "10"
    "lfomodpitch" "0"
    "lfomodvol" "0"
    "lforate" "0"
    "lfotype" "0"
    "message" "bombing.close_explos"
    "pitch" "100"
    "pitchstart" "100"
    "preset" "0"
    "radius" "1250"
    "spawnflags" "48"
    "spindown" "0"
    "spinup" "0"
    "targetname" "test_sound"
    "volstart" "0"
    "origin" "7295.66 3685.26 -151"
}

{
    "hammerid" "9678823"
    "classname" "env_explosion"
    "fireballsprite" "sprites/lightning001.vmt"
    "ignoredClass" "0"
    "iMagnitude" "10000"
    "iRadiusOverride" "900"
    "rendermode" "0"
    "spawnflags" "16384"
    "targetname" "test_explosion"
    "origin" "7301.79 3727.21 -151"
}

{
    "hammerid" "9678850"
    "classname" "env_fire"
    "damagescale" "1.0"
    "fireattack" "300"
    "firesize" "64"
    "firetype" "0"
    "health" "30"
    "ignitionpoint" "32"
    "spawnflags" "34"
    "StartDisabled" "1"
    "targetname" "test_fire"
    "origin" "7272 3708.42 -136"
}

{
    "hammerid" "9678883"
    "classname" "info_particle_system"
    "angles" "0 0 0"
    "cpoint1_parent" "0"
    "cpoint2_parent" "0"
    "cpoint3_parent" "0"
    "cpoint4_parent" "0"
    "cpoint5_parent" "0"
    "cpoint6_parent" "0"
    "cpoint7_parent" "0"
    "effect_name" "aircraft_destroy_fireballL1a"
    "render_in_front" "0"
    "start_active" "0"
    "targetname" "test_particle2"
    "origin" "7255.07 3739.54 -151"
}

{
    "hammerid" "9679682"
    "classname" "ambient_generic"
    "cspinup" "0"
    "fadeinsecs" "0"
    "fadeoutsecs" "0"
    "health" "10"
    "lfomodpitch" "0"
    "lfomodvol" "0"
    "lforate" "0"
    "lfotype" "0"
    "message" "c1m1.Fireloop01"
    "pitch" "100"
    "pitchstart" "100"
    "preset" "0"
    "radius" "1250"
    "spawnflags" "16"
    "spindown" "0"
    "spinup" "0"
    "targetname" "test_sound1"
    "volstart" "0"
    "origin" "7296 3704 -151"
}

{
    "hammerid" "9679709"
    "classname" "func_button"
    "disablereceiveshadows" "0"
    "disableX360" "0"
    "fademaxdist" "0"
    "fademindist" "-1"
    "fadescale" "1"
    "health" "0"
    "lip" "0"
    "locked_sentence" "0"
    "locked_sound" "0"
    "maxcpulevel" "0"
    "maxgpulevel" "0"
    "mincpulevel" "0"
    "mingpulevel" "0"
    "movedir" "0 0 0"
    "origin" "7296.5 3296 80"
    "renderamt" "255"
    "rendercolor" "255 255 255"
    "renderfx" "0"
    "rendermode" "0"
    "sounds" "0"
    "spawnflags" "1024"
    "speed" "5"
    "targetname" "test_button"
    "unlocked_sentence" "0"
    "unlocked_sound" "0"
    "wait" "3"
    "mins" "25 25 25"
    "maxs" "25 25 25"
    "OnPressed" "test_buttonKill0-1"
    "OnPressed" "test_boomStart0-1"
    "OnPressed" "test_boom1Start0-1"
    "OnPressed" "test_explosionExplode0-1"
    "OnPressed" "test_soundPlaySound0-1"
    "OnPressed" "test_fireEnable0-1"
    "OnPressed" "test_sound1PlaySound0-1"
}