Hello, I just installed your mod and couldn't find any dual inserters in the game. Has this feature not been implemented yet?
Also, there are some English texts in the mod settings that cannot be translated. Can you provide localized entries for these?
Thanks in advance.

place one slim-inserter over an other slim-inserter, then you have 2 dual inserters on the same tile. the inserters can be of different type or also can have opposite direction

i will have a look at those settings.

I tried to follow the method and then the game crashed.

Error while running event Kux-SlimInserters::script_raised_revive (ID 81)
Kux-SlimInserters/lib/Entity.lua:535: attempt to index global 'surface' (a nil value)
stack traceback:
Kux-SlimInserters/lib/Entity.lua:535: in function <Kux-SlimInserters/lib/Entity.lua:517>
(...tail calls...)
Kux-SlimInserters/events/on_built_entity.lua:62: in function <Kux-SlimInserters/events/on_built_entity.lua:8>
stack traceback:
[C]: in function 'revive'
creative-mod/scripts/util.lua:229: in function 'revive_entity_ghost_and_raise_event'
creative-mod/scripts/cheats.lua:2658: in function 'tick'
creative-mod/scripts/events.lua:297: in function <creative-mod/scripts/events.lua:259>

thank you for reporting it,
creative-mod support is not yet implemented, I will take this into account in future updates

note for the future: please create a new thread for a new problem, otherwise I can not answer specifically and that also avoids duplicates.

please see the question in new thread i create vor you
https://mods.factorio.com/mod/Kux-SlimInserters/discussion/64de4fad1a2558d0fadec923