Pretty Keys are Pretty Mysterious

[RickyS]

The Pretty keys are pretty mysterious.
Great keymap package, Sorely needed. Thanks. But questions:

I see legend at the beginning:
⌃ - CTRL, ⎇ - ALT, ⇧ - SHIFT

But what is this thing? ⌥
UPDATE: This thing has mysteriously disappeared: ⌥

And this puzzle has me baffled: ⎇ ⇧ ←
Alt+shift+left Arrow ?

And the box around the letter V: ⌃ ⍌

The most important thing is find duplicates, so I can figure out which one to change. I guess you are saying this is a duplicate in the Default Group. But what duplicate?
And which one is operative?
[ ⌃ ⇧ ⌫ ]: Left Delete
[ ⌃ ⇧ ⌫ ]: Run Macro File

How many different keystrokes are there here?
[ ⎋ ]: Clear Fields
[ ⎋ ]: Clear Fields
[ ⎋ ]: Hide Auto Complete
[ ⎋ ]: Hide Overlay
[ ⎋ ]: Hide Panel
[ ⎋ ]: Single Selection

In the Default group, this appears 3 times. Why 3 and not 1?
[ ⇧ ⇥ ]: Unindent
[ ⇧ ⇥ ]: Unindent
[ ⇧ ⇥ ]: Unindent

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Once I search for something,

1. I can't be sure I've got the right thing, it could be duplicated somewhere
2. I have to page up to see which group it is in. Could that be duplicated over to the right somewhere?