You can do this in an expression node. Assuming the account name field is named input_name:
/*Pre Expression */
string account_name_1
string account_name_2
hidden integer cnt
cnt = 0
/*Expression*/
if instr(`input_name`, ',') > 0 or instr(`input_name`, '&') > 0
begin
if instr(`input_name`, ',') > 0
cnt = parse(`input_name`, ',', account_name_1, account_name_2)
else
cnt = parse(`input_name`, '&', account_name_1, account_name_2)
end
else
begin
account_name_1 = `input_name`
account_name_2 = null
end
account_name_1 = trim(account_name_1)
account_name_2 = trim(account_name_2)