Re gen cases within template dynamically

Hi, I know below one will generate case1 and case2 in a case table:
*** Settings ***
Test Template         Testcases
*** Test cases ***
case1         124
case2         456
*** Keywords ***
Testcases
    [arguments]      ${caseid}
    ....

The thing is number of the case here in real world is dynamically generated from the list, how can I dynamically generate below sections while still get case1 and case2 in a testcase table ?
*** Test cases ***
case1         124
case2         456