add the possibility to call another file in a test file.
The syntax could be a simple url in the first column (like in the testSuite.html).
Combining such a possibility with storing values it permits to write parameter driven pieces of tests.

for example :
in init.html
----------------------------------------------------------+
init DataBase |
----------------------------------------------------------+
open | /mydatabaseLoader?load=${piece} | |
----------------------------------------------------------+
assertValue | result |succesfull |
----------------------------------------------------------+

then in test.html
----------------------------------------------------------+
Test my App
----------------------------------------------------------+
storeValue |piece |doc5.txt |
----------------------------------------------------------+
./init.html | | |
----------------------------------------------------------+
open |myappUrl | |
----------------------------------------------------------+
verifyTitle |the test App | |
----------------------------------------------------------+
....

the ./init.html act as if the lines of init.html where included (or better the link is followed and the test run).
It can be really of interest to facilitate writing tests.