Logicals & Complex Expressions

Can I use logicals?  For example, if pp>10 and pp < 20 then do x?

You can do logical but not complex expressions for your example you would need

if pp<=10 then skip next rule

if pp<20 the goto “myroutine”

// do other stuff here if rules do not match

goto “done”

label “myroutine”

// do stuff here

label “done”