These are de command line options and I have already tried "importResource" but only with individual files. I think it is not possible with a directory structure.
[<eSpace.oml>]
-buildNative <applicationKey> <applicationName> <hostName>
-cleanup <eSpace.oml> <output_file> [<productKey>]
-create NewApplication|NewMobileApplication|<templateKey> [-url <hostName>] [-userName <userName>] [-password|-encryptedPassword <password>]
-d <localESpace.oml> <foreignESpace.oml> <diffTextFile.txt>
-demoMode [<eSpace.oml>] [<hostName> <userName> <password>]
-diff <localESpace.oml> <foreignESpace.oml>
-downloadAndOpen -eSpaceKey <eSpaceKey> [-elementKey <elementKey>] [-url <hostName>] [-userName <userName>] [-password|-encryptedPassword <password>]
-export <eSpace.oml> <directory> xls|xlsx|resX [<output>]
-exportSettings settings.xml
-import <eSpace.oml> <resources.xls>|<resources.xlsx>|<resources.resX> [<output>]
-importResource <eSpace.oml> <resource file> [-override] [-deployAction ignore|copy] [<target directory>]
-importSettings settings.xml
-merge <localESpace.oml> <foreignESpace.oml> [ <baseESpace.oml> ]
-mergeModules <PlatformServicesHost> <Authtoken> <LocalEnvironmentHostname> <LocalModuleVersionId> <LocalEnvironmentId> <ForeignEnvironmentHostname> <ForeignModuleVersionId> <ForeignEnvironmentId> <LocalEnvironmentName> <ForeignEnvironmentName> <BaseModuleVersionId>
-openApp <appId> <appName> <packageUrl>
-openFromUrl (<.osp url> <eSpaceName> -connect) <hostName> <userName> <password>
-openModuleFromUrl (<url.oml>)|(<url>)|(<url?resourcename=.oml>)
-recover <espace.oml> [<lastSavePath>]
-refresh <eSpace.oml> <verify.xml> <hostName> <userName> <password> [<productKey>]
-removeChangeTracking <eSpace.oml> [<productKey>]
-resetSettings
-runTests <eSpace.oml>|<eSpaceKey> <output.xml> <hostName> <userName> <password> <tests>
-sd <localESpace.oml> <foreignESpace.oml> <diffTextFile.txt>
-showApp <applicationKey> <applicationName> <hostName>
-silentrecover <espace.oml> [<savePath>]
-structuralDiff <localESpace.oml> <foreignESpace.oml>
-structuralMerge <localESpace.oml> <foreignESpace.oml> [ <baseESpace.oml> ]
-u <eSpace.oml> [<verify.xml>] [-connectToServer <hostName> <userName> <password>] [<staticEntities.xml>] [<productKey>] [<serverDatabaseProvider>] [<externalDatabaseProviderKeys.xml>]
-uu <eSpace.oml> [-connectToServer <hostName> <userName> <password>] [<productKey>] [<serverDatabaseProvider>] [<externalDatabaseProviderKeys.xml>]