Yes you can accomplish it through SSMS. I prefer to do this in T-SQL.
To do this in SSMS.
Create a User and add them to the public role. (for minimum permissions)
If you want them to create objects you can add them to the ddl_admin role but they will be able to ALTER and Drop Objects as well.
If you want to prevent them from dropping objects you will need to do this in T-SQL.
Then right click on the table and select properties.
Click on permissions.
On the top pane click on the search button to add the User.
On the bottom pane, for SELECT Permissions check the Select box.
For INSERT PERMISSIONS check the Insert box
Check any other permissionsthat you want to grant or deny.
To do it in T-SQL:
Google for each permission that you need if you do not know the syntax.
Then create T-SQL Scripts to grant the permissions that you need.
Save your scripts for future reference.
Alter your saved scripts and save them as needed to assign permissions to other Users.
You will learn from creating scripts to grant permissions.
For better, quicker answers on T-SQL questions, click on the following... http://www.sqlservercentral.com/articles/Best+Practices/61537/
For better answers on performance questions, click on the following... http://www.sqlservercentral.com/articles/SQLServerCentral/66909/