Is it possible to build before the starting line in the editor?

I have been wondering if I can build blocks outside the squared area in Geometry Dash 2.1 update. In 1.9 this was possible by a bug with the tilted platform object.

Here's an image so you understand what I mean:

Yes, it's a screenshot from the old version of the editor, but the meaning is the same.

Is there any way or bug to do this in the 2.1 version?

Yes you can, take the blocks and use this button:

This will send the blocks past the start, it should look like this:

Even though the answer above by user181699 is correct, you mostly just use this for triggers, so that certain objects are already invisible at the beginning for example, as this method only allows blocks to be about 1.5 blocks before the line.

A better way of having objects as far in front of the line or anywhere you want is by moving them at the beginning.

Step 4: Select the move trigger and press "Edit Group" again. Set the "target group id" to the same number as the group your objects are in, set the duration to 0.00, and set the "move x" to whatever you want, from -1 to -x (-1 moves the objects a tenth of a block back).

Step 5: The objects should now move back when you start the level, you can play around with it to get the ideal amount.

Step 1: First you select the objects you want to have before the line, and then click on "Edit Group", which is an orange square button at the right.

Step 2: An interface will pop up, where you click "Next free", which shows the next group that hasnt been used, and press "Add", which assigns the selected objects to that group.

Step 3: Then you place a move trigger before the line.