ACL 2.0 - 2.2
They can sit in a mobile shower commode chair or a shower chair and toilet seat with arms. Many people are able to sit long enough to void.

They can lean forward on the count of three to cooperate with personal hygiene; physical assistance to sustain leaning forward may be necessary.
ACL 2.4
Getting the person to stay near the showering area is a challenge. Encourage use of a stable shower chair or mobile shower commode chair if the person is at risk of falls in very slippery environments.