No, they only pick up blocks that are in the world
All you do is right-click, and press B to go to a whole inventory of blocks. Source: minecraft.net/classic/play
Once you have installed Too Many Items, when you bring your inventory up, you can choose from a list of blocks/items that appears by the side and click them into your inventory.
You can right click on a group of blocks to pick up half of it, or if you are already holding it, you can right click on an empty inventory space to deposit a single unit.
Just right click the top of a block. If you mean how do you stack them in your inventory, it should be automatic. Unless its a door, a tool, ETC
No, they only pick up blocks that are in the world
The only way to acquire fire blocks in Minecraft 1.2.x is to use inventory editors.
All you do is right-click, and press B to go to a whole inventory of blocks. Source: minecraft.net/classic/play
Once you have installed Too Many Items, when you bring your inventory up, you can choose from a list of blocks/items that appears by the side and click them into your inventory.
You can right click on a group of blocks to pick up half of it, or if you are already holding it, you can right click on an empty inventory space to deposit a single unit.
You cannot get command blocks from the creative inventory, however you can type in a command to receive one. Press "T" on your keyboard while in-game and then type /give (your username) command_block.
Just right click the top of a block. If you mean how do you stack them in your inventory, it should be automatic. Unless its a door, a tool, ETC
all portals are 5 blocks by 4 blocks. If you saw a very big portal, then the person who made it hacked by inventory editing and got the portals blocks and just putting them on top of each other
Pressing 'E' will open your inventory.
There are 40325909164134400 blocks in a single minecraft world.
Since in creative, you've got access to infinite amounts of any block or item, there's no real need for the inventory. You could consider the selection menu to be your inventory or sorts. However you so still have an inventory, and it can be seen by interacting with blocks like a Dispenser.
Minecraft characters are approximately 2 blocks high.