Nested Cases - is it possible?

I have the following code :
select {?TroubleType}
case "All Types":
{tbl_tickets.CustomerAcctNumber} <> '0' and
{tbl_tickets.OpenDate} >= {?BeginDate} and
{tbl_tickets.OpenDate} <= {?EndDate} and
{tbl_tickets.CustomerAcctNumber} <> '184114' and
{tbl_tickets.TroubleType} <> ""
case {?TroubleType}:
{tbl_tickets.TroubleID}<> 0 and
{tbl_tickets.OpenDate}>= {?BeginDate} and
{tbl_tickets.OpenDate}<= {?EndDate} and
{tbl_tickets.CustomerAcctNumber}<> '184114' and
{tbl_tickets.TroubleType}= {?TroubleType}

and I need to duplicate it for 3 other parameter fields. Is there a way to nest the case statements - I continually get an error everytime I try add just one other case statement to a new parameter....

Not clear. U want to put on case within another?

Yes -

I need to do this same type of functionality for a total of 4 parameters - and have it interchangeably choose the option selected or all for each individual paramter:

example: Give me all the cities
and just troubletype of -email
with all the status

Or Just this city, with just this trouble with just open status....

Still I'm not clear. But if you want to nest ur case statements, here is an example

//starts here

select {?state}
case "MN" :
(

select {?city}

case "City A" :
"here is some code for city A"

case "City B" :

"here is some code for city B"

)

case "CA" :
"Here is some code for CA"

case "FL" :
"Here is some code for FL"