user9154: just wondering if there is a shortcut in after effects to reveal all transforming properties (scale, position, opacity, etc.) of a selected layer at once?

user6685: Some shortcuts depend on the language and your keyboard layout. 
For a german layout it's: Ctrl+Ü. 

However concatenating the shortcuts always works.
For Scale, Position and Opacity press S, Shift+P and Shift+T.

user1871: There's 3 options:
Ctrl+` for Toggle expansion of selected layers to show all properties
UU for Show only modified properties
U for Show only properties with keyframes or expressions

9154: <p>just wondering if there is a shortcut in after effects to reveal all transforming properties (scale, position, opacity, etc.) of a selected layer at once?</p>
 6685: <p>Some shortcuts depend on the <strong>language</strong> and your <strong>keyboard layout</strong>. </p>

<p>For a german layout it's: <kbd>Ctrl</kbd>+<kbd>Ü</kbd>. </p>

<hr>

<p>However <strong>concatenating</strong> the shortcuts always works.</p>

<p>For <em>Scale</em>, <em>Position</em> and <em>Opacity</em> press <kbd>S</kbd>, <kbd>Shift</kbd>+<kbd>P</kbd> and <kbd>Shift</kbd>+<kbd>T</kbd>.</p>
 1871: <p>There's 3 <a href="https://helpx.adobe.com/after-effects/using/keyboard-shortcuts-reference.html" rel="nofollow">options</a>:</p>

<p><kbd>Ctrl+`</kbd> for <em>Toggle expansion of selected layers to show all properties</em></p>

<p><kbd>UU</kbd> for <em>Show only modified properties</em></p>

<p><kbd>U</kbd> for <em>Show only properties with keyframes or expressions</em></p>
