Controller

set mainview [view::create "/test.adp"]
# ::view::pattern::register mainview foo {i}
# ::view::pattern::register mainview bar {j}
# ::view::pattern::register mainview baz {}

for {set i 1} {$i <= 3} {incr i} {

    set parent_id [::view::pattern::clone mainview foo [list $i]]

    if {$i == 1} {

        ::view::pattern::clone mainview baz {} $parent_id
    }
}

for {set j 1} {$j <= 3} {incr j} {

    ::view::pattern::clone mainview bar [list $j]
}
puts [::view::return mainview]

View

<h1>Main View</h1>

<bpt_pattern ID=foo>Parent Counter: ${%i}<BR>
    <bpt_pattern ID=bar>Child Counter: ${%j} for Parent ${%i}</bpt_pattern>
    <bpt_pattern ID=baz>I only appear in the first foo!</bpt_pattern>
</bpt_pattern>