VirtualBox 5: vboxmanage options

Usage:

VBoxManage modifyvm         <uuid|vmname>
                            [--name <name>]
                            [--groups <group>, ...]
                            [--description <desc>]
                            [--ostype <ostype>]
                            [--iconfile <filename>]
                            [--memory <memorysize in MB>]
                            [--pagefusion on|off]
                            [--vram <vramsize in MB>]
                            [--acpi on|off]
                            [--pciattach 03:04.0]
                            [--pciattach 03:04.0@02:01.0]
                            [--pcidetach 03:04.0]
                            [--ioapic on|off]
                            [--hpet on|off]
                            [--triplefaultreset on|off]
                            [--paravirtprovider none|default|legacy|minimal|
                                                hyperv|kvm]
                            [--hwvirtex on|off]
                            [--nestedpaging on|off]
                            [--largepages on|off]
                            [--vtxvpid on|off]
                            [--vtxux on|off]
                            [--pae on|off]
                            [--longmode on|off]
                            [--cpuid-portability-level <0..3>
                            [--cpuidset <leaf> <eax> <ebx> <ecx> <edx>]
                            [--cpuidremove <leaf>]
                            [--cpuidremoveall]
                            [--hardwareuuid <uuid>]
                            [--cpus <number>]
                            [--cpuhotplug on|off]
                            [--plugcpu <id>]
                            [--unplugcpu <id>]
                            [--cpuexecutioncap <1-100>]
                            [--rtcuseutc on|off]
                            [--graphicscontroller none|vboxvga|vmsvga]
                            [--monitorcount <number>]
                            [--accelerate3d on|off]
                            [--accelerate2dvideo on|off]
                            [--firmware bios|efi|efi32|efi64]
                            [--chipset ich9|piix3]
                            [--bioslogofadein on|off]
                            [--bioslogofadeout on|off]
                            [--bioslogodisplaytime <msec>]
                            [--bioslogoimagepath <imagepath>]
                            [--biosbootmenu disabled|menuonly|messageandmenu]
                            [--biossystemtimeoffset <msec>]
                            [--biospxedebug on|off]
                            [--boot<1-4> none|floppy|dvd|disk|net>]
                            [--nic<1-N> none|null|nat|bridged|intnet|hostonly|
                                        generic|natnetwork]
                            [--nictype<1-N> Am79C970A|Am79C973|
                                            82540EM|82543GC|82545EM|
                                            virtio]
                            [--cableconnected<1-N> on|off]
                            [--nictrace<1-N> on|off]
                            [--nictracefile<1-N> <filename>]
                            [--nicproperty<1-N> name=[value]]
                            [--nicspeed<1-N> <kbps>]
                            [--nicbootprio<1-N> <priority>]
                            [--nicpromisc<1-N> deny|allow-vms|allow-all]
                            [--nicbandwidthgroup<1-N> none|<name>]
                            [--bridgeadapter<1-N> none|<devicename>]
                            [--hostonlyadapter<1-N> none|<devicename>]
                            [--intnet<1-N> <network name>]
                            [--nat-network<1-N> <network name>]
                            [--nicgenericdrv<1-N> <driver>
                            [--natnet<1-N> <network>|default]
                            [--natsettings<1-N> [<mtu>],[<socksnd>],
                                                [<sockrcv>],[<tcpsnd>],
                                                [<tcprcv>]]
                            [--natpf<1-N> [<rulename>],tcp|udp,[<hostip>],
                                          <hostport>,[<guestip>],<guestport>]
                            [--natpf<1-N> delete <rulename>]
                            [--nattftpprefix<1-N> <prefix>]
                            [--nattftpfile<1-N> <file>]
                            [--nattftpserver<1-N> <ip>]
                            [--natbindip<1-N> <ip>
                            [--natdnspassdomain<1-N> on|off]
                            [--natdnsproxy<1-N> on|off]
                            [--natdnshostresolver<1-N> on|off]
                            [--nataliasmode<1-N> default|[log],[proxyonly],
                                                         [sameports]]
                            [--macaddress<1-N> auto|<mac>]
                            [--mouse ps2|usb|usbtablet|usbmultitouch]
                            [--keyboard ps2|usb
                            [--uart<1-N> off|<I/O base> <IRQ>]
                            [--uartmode<1-N> disconnected|
                                             server <pipe>|
                                             client <pipe>|
                                             tcpserver <port>|
                                             tcpclient <hostname:port>|
                                             file <file>|
                                             <devicename>]
                            [--lpt<1-N> off|<I/O base> <IRQ>]
                            [--lptmode<1-N> <devicename>]
                            [--guestmemoryballoon <balloonsize in MB>]
                            [--audio none|null|dsound]
                            [--audiocontroller ac97|hda|sb16]
                            [--audiocodec stac9700|ad1980|stac9221|sb16]
                            [--clipboard disabled|hosttoguest|guesttohost|
                                         bidirectional]
                            [--draganddrop disabled|hosttoguest]
                            [--vrde on|off]
                            [--vrdeextpack default|<name>
                            [--vrdeproperty <name=[value]>]
                            [--vrdeport <hostport>]
                            [--vrdeaddress <hostip>]
                            [--vrdeauthtype null|external|guest]
                            [--vrdeauthlibrary default|<name>
                            [--vrdemulticon on|off]
                            [--vrdereusecon on|off]
                            [--vrdevideochannel on|off]
                            [--vrdevideochannelquality <percent>]
                            [--usb on|off]
                            [--usbehci on|off]
                            [--usbxhci on|off]
                            [--usbrename <oldname> <newname>]
                            [--snapshotfolder default|<path>]
                            [--teleporter on|off]
                            [--teleporterport <port>]
                            [--teleporteraddress <address|empty>
                            [--teleporterpassword <password>]
                            [--teleporterpasswordfile <file>|stdin]
                            [--tracing-enabled on|off]
                            [--tracing-config <config-string>]
                            [--tracing-allow-vm-access on|off]
                            [--usbcardreader on|off]
                            [--autostart-enabled on|off]
                            [--autostart-delay <seconds>]
                            [--videocap on|off]
                            [--videocapscreens all|<screen ID> [<screen ID> ...]]
                            [--videocapfile <filename>]
                            [--videocapres <width> <height>]
                            [--videocaprate <rate>]
                            [--videocapfps <fps>]
                            [--videocapmaxtime <ms>]
                            [--videocapmaxsize <MB>]
                            [--videocapopts <key=value> [<key=value> ...]]
                            [--defaultfrontend default|<name>]