T-SQL - Script all tables creation, contraints, indexes, keys and triggers
To clarify.  You want to generate a script for all objects in a database and then for a select set of tables, have it generate the script to create the data?  

Just do it in two steps.  One pass with the Generate Scripts as you have described, selecting all the objects you want to generate the create scripts for.  

Then do it again, this time for just the tables you want, but make sure to select the Advanced (on the "Set Scripting Options" section) --> Types of data to script == "Data Only"

You can then further select either all scripts to a single file or a single file per object.  

If you want to do this on a regular basis (or more dynamcially), you can interact with the Generate Scripts engine through scripts. This is a good article on getting started.  https://www.mssqltips.com/sqlservertip/1833/generate-scripts-for-database-objects-with-smo-for-sql-server/