Query builder in SQLA

Here is how you can proceed with query builder in SQLA:

1. Query builder in SQLA is under the Help tab, or you can press F2. Here, you can click on any existing command or browse for the one you need. 
2. You can also add frequently used queries in query builder. Click on + as shown in the following screenshot and add the queries that you need most, so that you don't have to search for them: