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SkyCiv Structural 3D

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Keyboard and Mouse Controls

Speed up your modeling with these handy keyboard/mouse controls, shortcuts, and tips

Keyboard Shortcuts

Here are just some of the keyboard shortcuts to make your data entry faster.

  • Ctrl + S: Save
  • Ctrl + N: New
  • Ctrl + Z: Undo
  • Ctrl + Y: Redo
  • Ctrl + A: Select All
  • Ctrl + D: Copy (Duplicate)
  • N: Nodes
  • M: Members
  • E: Sections
  • O: Moments
  • P: Point Loads
  • D: Distributed Loads
  • U: Supports
  • B: Back Button / Exit Form
  • Delete: Delete members or plates after they are selected.
  • Esc: Cancel the current processing operation.

If at any point, you would like to see the list of shortcuts that we offer, go to Help > S3D Shortcuts and Tips as shown in the upper right-hand corner of the screen:


Here is a snapshot of the shortcuts and tips that help users expedite their modeling process:


Mouse Controls

SkyCiv has built out a range of features that make the modeling process extremely and fast and easy. One of these great sets of mouse click functions, that once used to, can allow users to mock up a model with a few clicks.


There are a range of tools that you can choose from. These can be accessed by clicking the pen icon  to launch the following great tools:

Click the pen icon  to access these different mouse controls

Default Tool

The default tool, denoted by the cross-hair mouse icon, has the following features:

  • Click + Drag between nodes to create a member. Hold a number to create a member with that number’s section ID:
  • With Plates menu open: Click between nodes to create a plate:
  • Hold CTRL + Drag to multi-select:
  • Rotating – Left click and drag to rotate your structure.
  • Panning – Right-click and drag to pan. Alternatively, use Shift + Left Click.
  • Zooming – Scroll mouse forward/back to zoom in/out of the model.
  • Select – Left click a member/node/plate/support/load.
  • Multi Select – Ctrl + Left Click.
  • Create Member – Left click starting node, drag to ending node, and release on ending node.
  • Click member, node, or any other object to view/edit/delete
  • Click member to view that result only (Post Solve Only)
  • Ctrl + Click: Multiple Object Select
  • Scroll + S: Scale Result/Loads

Note: If zooming not working on Chrome, try checking extensions

Quick Tips with Highlighting

Click and dragging in either direction will do something different!

Click and drag to the RIGHT will select anything that comes in contact with the box.

Click and drag to the LEFT will highlight anything that is entirely within the box. Both can be seen in the image below.

Draw Tool

  • Hover or click a node, this will become your Reference Node, from here you can use the Snap/Grid to plot a node:
  • With the Connect Member tickbox selected, you can both drop a node and connect the nodes as a member:
  • The Length box will auto display the length of the distance from the reference node (and hence the length of the member). At any point you can enter a length and hit Enter, or click, to apply that member length.
  • Enter a length and click the  (lock) icon to lock the length. Now you can create members fixed at this length.

Grab Tool

  • Click and drag a node to move it and snap it to a point of reference:

Right Click (Quick) Repairs

SkyCiv has introduced a couple of quick repair functions that allow users to easily detect and repair issues with your model. This is slightly different from SkyCiv’s Repair Model functionality which will repair your entire model. This is focused on your highlighted elements that the user can easily identify. For instance, two nodes closely together can be merged using the Merge Nodes feature. Here is the full list of quick repairs that are automatically detected by the software when you highlight and right-click parts of your structure.

Merge Nodes

Notice you have two nodes that are really close. It’s a fairly common problem and may cause disconnects in your model. Simply highlight the nodes (CTRL + CLICK & DRAG) then right-click and click Merge Nodes:

Intersecting Members

Sometimes members can be drawn over one another. Although difficult to notice, these can have disastrous effects on your model, as that model will have a double up and will overestimate the strength of that member (by a factor of 2). Simply highlight the overlapping members and right-click. The software will automatically detect the members as overlapping. To repair this simply clicks Merge Overlapping Members to merge the two members. It should look something like this:

Overlapping Members

Sometimes you want to split (and connect) members by their intersection. Remember, members are only connected if they have a common node. So if you have two intersecting members with no common node, they are not connected. Again, highlight the members and right-click to repair this and add a node at the point of their intersection. To do this, simply right-click and click Intersect Members. This will add a node at the intersection and separate the members into smaller elements:

Split Member

A useful tool that allows you to add a node and split the member based on some input. Members can be split based on intersecting nodes, intersecting members, number of sections, or at a location along with the member:

Have any other issues you’d like to have added to this list? Let us know at [email protected]

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