pace
| fs-*          remove all flagspaces
| fs+foo        push previous flagspace and set
| fs-           pop to the previous flagspace
| fs-.          remove the current flagspace
| fsq           list flagspaces in quiet mode
| fsm [addr]    move flags at given address to the current flagspace
| fss           display flagspaces stack
| fss*          display flagspaces stack in r2 commands
| fssj          display flagspaces stack in JSON
| fsr newname   rename selected flagspace
</code></pre>

            