While using SQL Server Management Studio (2008), is it possible to open a table in Edit mode through keyboard shortcut or even some special keyword I type while in "New Query" window?
No this can't be done.
You can open a table by right clicking on the table you want to edit and selecting "edit all rows" - before doing this make sure your options are set tools/options/ Sql server object explorer/commands.
Dont know if that helps but maybe.
来源：https://stackoverflow.com/questions/2764587/sql-server-management-studio-open-table-for-editing-through-keyboard-shortcut