My unit - question thread? The dummy version

[Micropterus salmoides]

Thx for any advice, suggestions, help in advance guys. I really do appreciate it. I’m good at very few things in life and I’m a pretty decent fisherman in my paddle boat, but time to venture out more with the boys.

My HB is a gen 2 si/di gps model
Transducer in box is
XNT 9 SI 180 T

So basically If I get to go fishing this coming Saturday I want to narrow down a few things and go from there. I want to see how far down my transducer pole needs to be in the shallowest water I will be fishing so I can cut the pole to eliminate as much obstruction for jigging. I work a lot structure just vertically or pitching in and around.
THEN I want to be able to adjust the Bird depth offset of the transducer. I’ve yet to find that setting that I had in an older unit years back on a portable depth finder.
That’s my two main things at this point.
The other is prob pretty basic to all yall and may have been answered for me at one point when I was fishing a lil more regularly and I didn’t jot it down. Bc didn’t take motor boat out.

Under the sonar tab and “connected transducer” area, my options are:
1) compact side imaging
2) HB 50/200 kHz + 455 kHz SI
3) HB 83/200 kHz
4) HB 50/200 kHz
5)-8) generic low, medium, high & 50/200 kHz

This is all Arabic to me.
Are all of these options within my one transducer or is it asking me to pick which option my transducer is capable of

Couple shots from where I sit at in my yard when the good lord allows






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