Eng:Shift Secrets (1.4)

Scratch 1.4 had many "secrets" included with it, ranging from reaching the System Browser to editing the color of various parts of the Scratch user interface. Most of them relied on the shift key; the Shift-Click-R sequence relied on it, the deletion of multiple sprites required it, and many other tricks do. These tricks are most commonly called Shift Secrets.

Paint Editor
There was many secrets in the paint editor. Many were listed in the Scratch Secrets forum thread, such as how to choose a custom size percentage for an image or a custom amount of degrees of which to rotate it.

Programming Features
The tricks that could be found outside the Paint Editor.

Shift-Click-R
If a Scratcher shift-clicked the R in the Scratch logo around the upper-left of the programming interface, a window would appear. If one selected "Turn Fill Screen Off", modifications of the Scratch program and interface could be made - such as enabling Mesh.

Shift-click-R before 1.4
Prior to Scratch 1.4, many other features could be found by using the "Set MIDI port" option. Experimental blocks and such could be viewed as well, but all this was lost with Scratch 1.4 - however, there are other ways to access those areas.

Editing text
Text could be sometimes be edited by holding shift and selecting text.

Other cases of text editing were published in tutorial projects. One such tutorial instructs users on how to change the list of default upload tags in the project uploading box.

Changing the logo
By turning the Fill Screen feature off and alt-clicking the Scratch logo, one could reach the logo painting area; users were able to change the Scratch logo in their copy of Scratch.

Growing and shrinking Sprites
When using the "Grow sprite" or "Shrink sprite" tools, you could hold shift to make a drastic change in growth.

Full Screen
The player could be put into full screen (not just enlarged) by pressing shift and the button. However, input (buttons and answers) would not work.

Turbo Mode
Turbo Mode could, and still can, be turned on by shift-clicking the Green Flag. Shift-clicking the flag again turns turbo mode off. Turbo Mode increases the speed of some blocks. It can be useful for complicated calculations.