Banjo Esus4 chord (Open G)E suspended 4th on the 5-string banjo: 2 2 0 2, and 5 more shapes

Frets, string 4 to string 1: 2 2 0 2 (open position)

1. String 4 (D): 2nd fret, index finger, E
2. String 3 (G): 2nd fret, middle finger, A
3. String 2 (B): open, B
4. String 1 (D): 2nd fret, ring finger, E
5. String 5, the short g: open, G, not in the chord

Sounds: E A B E  ·  Esus4 is E, A, B (1 · 4 · 5)

The 5th string: the short g adds the minor 3rd over Esus4, a colour rather than a clash.

Open G tuning: gDGBD, the short 5th string first, then strings 4 to 1.