Allow multiple return values from a UserParameter

It would be nice if a UserParameter could return more than one value.

(1)
Take Nagios for example. Their plugins return both a status code (OK, WARN or ALERT) and a text string.
The status is triggering a notification if needed and the text string is just added to the notification.
But Zabbix currently doesn't accept these two bits of information from a UserParameter.

My current task is to monitor a MySQL database replication. I usually have the number of seconds that
a replication lags behind the master. But things can go wrong and the replication has stopped or I can't
reach the database or whatever has happened. The shell plugin I wrote knows all these cases
but cannot properly communicate them to Zabbix. My current workaround is that I return a positive
number of the number of seconds of replication lag. And -1 if the database is down, -2 if the replication
has stopped, -3 if I lack permission to access the database and so on. This looks stupid in the graphs.
So I wished I could return the number of seconds latency as usual but also a general status in the same run
including a free-form text.

Example:
return value #1: UNDEF seconds lag
return value #2: status: error
return value #3: status text: Master database server has become unreachable.

Example:
return value #1: 129 seconds lag
return value #2: status: ok
return value #3: status text: -

(2)
Some commands can gather multiple parameters and returning them. But currently Zabbix
only supports one paramter per UserParameter. As a bad example a shell command may need to be called
ten times (with the same parameters) to return ten different values.

Random example:

UserParameter=mysql.replicationstatus,somecommand | awk '{print $1}'
UserParameter=mysql.replicationlag,somecommand | awk '{print $2}'
UserParameter=mysql.replicationposition,somecommand | awk '{print $3}'

It would be nicer if "somecommand" could just be called once and return three values that Zabbix can deal with.

Hope this makes any sense.