The Interface-range specification feature allows the specification of a range of interfaces to which subsequent commands are applied. The Interface-range specification feature makes configuration easier since identical commands can be entered once for a range of interfaces rather than being entered separately for each interface.

 To configure a large number of ports with QFabric.

Interface-range is part of the main Junos OS, so the same capabilities / options are inherited in QFabric.  But in QFabric, the range-command only works for a single QFNode.

At FRS, the range command cannot be applied across different QFNodes or within a Server Redundant Node Group or Network Node Group.

interface-range access-port {
    member-range Node-1:xe-0/0/0 to Node-5:xe-5/0/47;
}

Supported

interface-range access-port {
    member-range Node-1:xe-0/0/0 to Node-1:xe-0/0/47;
    member-range Node-2:xe-0/0/0 to Node-2:xe-0/0/47;
    member-range Node-3:xe-0/0/0 to Node-3:xe-0/0/47;
    member-range Node-4:xe-0/0/0 to Node-4:xe-0/0/47;
    member-range Node-5:xe-0/0/0 to Node-5:xe-0/0/47;
}

The interface range command has to be applied from the SFC -CLI whihc is from the DG directly and not from the individual node-group.
It seems to be a limitation that multiple nodes within same node-group can't be used at once to configur the ports.

Example from lab

set interfaces interface-range Test-Range-1 member-range qf1-nng-3:ge-0/0/6 to  qf1-nng-3:ge-0/0/7
set interfaces interface-range Test-Range-1 disable <-- disable option will disable all the listed ports

In the above statement, Test-Range-1 is the interface-range-name, which is like group-name .

List of all possible completion

root@qfabric# set interfaces interface-range Test-Range-1 ?
Possible completions:
  accounting-profile   Accounting profile name
> aggregated-ether-options  Aggregated Ethernet interface-specific options
> aggregated-sonet-options  Aggregated SONET interface-specific options
+ apply-groups         Groups from which to inherit configuration data
+ apply-groups-except  Don't inherit configuration data from these groups
> atm-options          ATM interface-specific options
> clocking             Interface clock source
> container-options    Container interface specific options
  dce                  Respond to Frame Relay status enquiry messages
  description          Text description of interface
  disable              Disable this interface
> ds0-options          DS-0 interface-specific options
> e1-options           E1 interface-specific options
> e3-options           E3 interface-specific options
> ether-options        Ethernet interface-specific options
> fibrechannel-options  Fibre Channel interface-specific options
> framing              Frame type
> ggsn-options         GGSN interface-specific options
  gratuitous-arp-reply  Enable gratuitous ARP reply
> hold-time            Hold time for link up and link down
> lmi                  Local Management Interface settings
> lsq-failure-options  Link services queuing failure options
  mac                  Hardware MAC address
> member               Interfaces belonging to the interface range
> member-range         Interfaces range in <start-range> to <end-range> format
> mlfr-uni-nni-bundle-options  Multilink Frame Relay UNI NNI (FRF.16) management settings
  mtu                  Maximum transmit packet size (256..9216)
> multiservice-options  Multiservice interface-specific options
  no-gratuitous-arp-reply  Don't enable gratuitous ARP reply
  no-gratuitous-arp-request  Ignore gratuitous ARP request
  no-keepalives        Do not send keepalive messages
  no-traps             Don't enable SNMP notifications on state changes
> satop-options        Structure-Agnostic TDM over Packet protocol options
> serial-options       Serial interface-specific options
> services-options     Services interface-specific options
> shdsl-options        SHDSL interface-specific options
  speed                Link speed
> t1-options           T1 interface-specific options
> t3-options           T3 interface-specific options
  traps                Enable SNMP notifications on state changes
> unit                 Logical interface
  vlan-tagging         802.1q VLAN tagging support

2018-07-23: Added an example and a list of possible completions in the solution section.