WRWG284

thank you everyone this is so helpful!! 

That looks correct to me also, but again, and I want to emphasize this.  It’s always best to leave the receive tones off when getting started.  If you leave the receive tones unset, you receive everything on that rx frequency.

No disagreement, just a couple things to add...
The first, the tone mode column will need to be "dtcs"  The second, same again for tone mode, and also need to set the cross mode...can use "dtcs->" for testing with no Rx tone, or "dtcs->dtcs" to use both tones.
https://chirp.danplanet.com/projects/chirp/wiki/MemoryEditorColumns

I could be wrong, but are the transmit and receive tones supposed to be the same?  If so, don't set to 'TSQL', just set to 'Tone'.  I THINK...  I don't have it here in front of me...

If only the receive tone is supposed to be set, remove the "Tone" setting.

I'm guessing somebody else can answer this better than me.

You're on the right track. It's not uncommon for both tones to be the same, but until it's confirmed working, I would go with 'tone' (which just sends a transmit tone, and uses normal.squelch for receive) vs tonesql (which uses the same tone for both transmit and receive).
On that group on 18, it is possible they're using tones within their group, so wouldn't hear another user using no tones on transmit or receive.

1.  DTCS Code: 025; DTCS Rx: 025; NN
2. DTCS Code: 315; DTCS Rx: 411; NN
I believe that's correct anyway!  Somebody will correctly me if I'm wrong, I hope.