Call recording on incoming trunk (many extensions, no routes)

I whould like to have all incoming external calls recorded.
as for outgoing - i’ve made a rule in recordings for trunk and have a file (that is good).
what is a simplest way to have it also on incoming - but i have a 1:1 DID-> EXTENSION (so i have a 1CDU 1000-1999 DIDS that are also my extensions, do i need to make a 1000x recodrding rules)
i’ve setup in every extension recoring incoming external and outgoing external to “force”.

You need to check out the bulk handler.
admin > bulk handler

Export your DID CSV file, modify with awesome tools like excel or openoffice and re-import.