Fact 1: Instead of using shift+F1, You can bind it to a different key.
Type in console: bind q "+toggle_spawnmenu"
Fact 2 (panels): there is panels to let you choose what to spawn.
Cars are for cars.
entities are for entities.
weapons(SWEPS) are for weapons.
Those are just a few of the many panels of stuff.
Info 3:
There are many tools to help you build.
Weld - Link objects together
Ball Socket - Weld a prop but only at one end
Scale - Change NPC sizes
And Many More!
