Scripted behavior to vary display of help text based on select list option

[Durell Demartini]

Hello,

I'm not very familiar with ScriptRunner, but I'd like to see if it's straightforward enough to use a behavior to have some customized help text appear under a specific custom field, depending on the option selected.

Select option A, see Option A message below field

Select option B, see Option B message below field, etc.

Thanks in advance for any assistance you can offer.