Hi
maybe another way is to limit your exposure:
say you have £5.00 back bet each market, and you can allow a limit of 3 markets being unsettled
make a new constant, name: mxe, description: maximum exposure, value: 15 (that's 3 markets x £5.00, or your max exposure)
in your backing trigger add this condition:
and selections trigger expression IF(test_mode=1, test_balance-test_funds, uk_balance-uk_funds) is less than mxe
so the trigger will bet only if your exposure is less than 15.00
then use a trigger to delete markets which have no matched or unmatched bets after a certain time