user17604: I have a long video made of assembled cut clips and sometimes I have to insert a black gap between two clips, for instance 

Commonly I would select all the afterwards clips and zooooom out and drag and drop them a bit after as to make this gap but I would like to know if there exists a shortcut or a command to do that without to zoom out and select and drag&drop because on a video with a lot of clips sometimes it is time taking..
Anything like tell adobe Premiere Pro, at this location where the cursor holds add a gap of n seconds ?

user10931: There is a much better way to do this.  If you have a Black Video clip (aka slug) in your Project, you can insert it (sliding all clips to the right) as follows:
Select and copy the Black Video clip.  Then at the point where you want to insert it, choose Edit > Paste Insert.
The clip or clips are pasted into the sequence, and the playhead jumps to the end of the pasted clip or clips.
If the Black Video clip you are inserting is longer or shorter in duration than what you exactly want, you can make a ripple edit to the slug and clips to the right will ripple accordingly.  See this section of the Premiere documentation.

user1950: The closest thing in Premiere is the nudge keyboard shortcut. Select the clips you want to move and hit ⌘ / ctrl← or ⌘ / ctrl→ to nudge the clips one frame forward or back, and hold the shift key  ( ⌘ / ctrlshift← or ⌘ / ctrlshift→ ) to make it 5 frames. 
You can increase or decrease the amount it nudges in the preferences, so if you want ⌘ / ctrlshift← to nudge 5 seconds, open preferences then look for trim and change the Large Trim Offset amount to 125 (for 25fps, or 150 for 30fps).

17604: <p>I have a long video made of assembled cut clips and sometimes I have to insert a black gap between two clips, for instance </p>

<p><a href="https://i.stack.imgur.com/ax8h8.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ax8h8.png" alt="enter image description here"></a></p>

<p>Commonly I would select all the afterwards clips and zooooom out and drag and drop them a bit after as to make this gap but I would like to know if there exists a shortcut or a command to do that without to zoom out and select and drag&amp;drop because on a video with a lot of clips sometimes it is time taking..</p>

<p>Anything like tell adobe Premiere Pro, at this location where the cursor holds add a gap of n seconds ?</p>
 10931: <p>There is a much better way to do this.  If you have a Black Video clip (aka slug) in your Project, you can insert it (sliding all clips to the right) as follows:</p>

<p>Select and copy the Black Video clip.  Then at the point where you want to insert it, choose Edit > Paste Insert.</p>

<p>The clip or clips are pasted into the sequence, and the playhead jumps to the end of the pasted clip or clips.</p>

<p>If the Black Video clip you are inserting is longer or shorter in duration than what you exactly want, you can make a ripple edit to the slug and clips to the right will ripple accordingly.  See <a href="https://helpx.adobe.com/premiere-pro/using/trimming-clips1.html" rel="nofollow noreferrer">this section</a> of the Premiere documentation.</p>
 1950: <p>The closest thing in Premiere is the nudge keyboard shortcut. Select the clips you want to move and hit <kbd>⌘ / ctrl</kbd><kbd>←</kbd> or <kbd>⌘ / ctrl</kbd><kbd>→</kbd> to nudge the clips one frame forward or back, and hold the shift key  ( <kbd>⌘ / ctrl</kbd><kbd>shift</kbd><kbd>←</kbd> or <kbd>⌘ / ctrl</kbd><kbd>shift</kbd><kbd>→</kbd> ) to make it 5 frames. </p>

<p>You can increase or decrease the amount it nudges in the preferences, so if you want <kbd>⌘ / ctrl</kbd><kbd>shift</kbd><kbd>←</kbd> to nudge 5 seconds, open preferences then look for <strong>trim</strong> and change the <strong>Large Trim Offset</strong> amount to 125 (for 25fps, or 150 for 30fps).</p>
