Doesn't look like there is a command you can bind to a key, however I did find this in the wiki under

http://www.stowiki.org/Guide:_Keybinds

I'm not sure what the command "statpreset_load" does, it has no comment listed when I press /cmdlist, and it doesn't say who exactly to PM. Where is the post keybinds for dummies? I think it used to be in this forum, isn't anymore.

Also, what is the command for Fire all beams, I found fire all phasers, maybe it's a type, your beam weapons aren't all necessarily phasers.

I can manually set each one, by clicking on the keyboard map, but I want to make it part of my bind file.

Look at your HUD, the presets from left to right are presets 1, 2, 3, 4

"StatsPreset_Load Preset_1" - attack
"StatsPreset_Load Preset_2" - defence
"StatsPreset_Load Preset_3" - engines
"StatsPreset_Load Preset_4" - balance

You know you can just set this ingame, in Options. Then save ALL current keybinds to a file with |/bind_save_file <filename>.txt| Use DefaultGround.Txt or DefaultSpace.Txt to have it 'default' for every new captain.

You can then edit the file later to improve clarity, add remarks or whatever. I'd suggest making aliases for loading various keybind files.

// POWERLEVEL PRESETS
Numpad1 "genbuttonclick powerlevel_preset_0"
Numpad2 "genbuttonclick powerlevel_preset_1"
Numpad3 "genbuttonclick powerlevel_preset_2"
Numpad4 "genbuttonclick powerlevel_preset_3"

This is what i use.

And, what about the command for fire all beams?

You mean... the SPACEBAR? Again, you can change this in Options. Surely, you've looked at that by now.