magento2 extension patches in modules

[lpwe]

Hi,

I have a few patches for the amasty importer in magento 2. According to Amasty, I have to place these patches directly in the modules. Now when I try to install these with composer-patches, I'm getting of course an error, because the modules are deleted first (together with the patches), downloaded and installed again. And of course composer-patches doesn't find the needed patches anymore when it tries to install them.
Is there an option to handle this?

Thank you.
BR