Merge pull request #3946 from zowe/anax-v3.0-fileassociationfordatase…

…ts-ze

documenting file associations instructions for V3

docs/user-guide/ze-usage-tips.md

@@ -12,7 +12,17 @@ Zowe Explorer supports syntax highlighting for data sets and USS files. To enabl
 
 ## Configure the detected language of a file or data set
 
-Configure Visual Studio Code to use a specific language for a particular file extension type. This prevents the language for a file or data set opened in Zowe Explorer from being detected incorrectly. To set file associations, see [Add a file extension to a language](https://code.visualstudio.com/docs/languages/overview#_add-a-file-extension-to-a-language).
+Configure the `file.associations` setting in Visual Studio Code to use a specific language for a particular file extension type. This prevents the language for a file or data set opened in Zowe Explorer from being detected incorrectly.
+
+ To set file associations that work for sequential data sets as well as partitioned data set members, use wildcards with the language identifier in the format `**/*LANGUAGE*{,/*}`:
+
+```
+    "files.associations": {
+        "**/*COBOL*{,/*}": "cobol"
+    }
+```
+
+In the example above, Zowe Explorer uses wild cards to find matches of the configured language (`COBOL`) in the file paths of sequential data sets (for example, `/lpar.zosmf/TEST.COBOL.PS`) and PDS members (for example, `/lpar.zosmf/TEST.COBOL.PDS/MEMBER`).
 
 ## Manage a profile