Keyboard Shortcuts The following table summarizes the available keyboard shortcuts on Windows and Linux and on Macintosh (see also the Application Builder documentation for specific keyboard shortcuts): Shortcut (Windows, Linux) Shortcut (Macintosh) Action F1 F1 Display help for the selected node or window. Ctrl+F1 Command+F1 Open the COMSOL Documentation front page in an external Help window. F2 F2 Rename the selected node, file, or folder. F3 F3 Disable selected nodes. F4 F4 Enable selected nodes. F5 F5 Update solution with respect to new definitions without re-solving the model Also, on Windows, to continue in the Method Editor’s debugging tool in the Application Builder. F6 F6 Build the preceding node in the Geometry branch. Also, on Windows, to step in the Method Editor’s debugging tool in the Application Builder, F7 F7 Build the selected node in the geometry and mesh branches, compute the selected study step, or compute to the selected node in the solver sequence. Also, on Windows, to step into in the Method Editor’s debugging tool in the Application Builder. F8 F8 Build the geometry, build the mesh, compute entire solver sequence, update results data, or update the plot. Del Del Delete selected nodes. Left arrow (Windows); Shift + left arrow (Linux) Left arrow If you are at the top of a branch, pressing this collapses this branch in the Model Builder. Continue pressing the left arrow key to move upwards in the tree to collapse all branches. If within a subbranch, pressing the left arrow key repositions you to the beginning of the branch. Right arrow (Windows); Shift + right arrow (Linux) Right arrow Expand a branch in the Model Builder. Up arrow Up arrow Move to the node above in the Model Builder. Down arrow Down arrow Move to the node below in the Model Builder. Alt+left arrow Ctrl+left arrow Move to the previously selected node in the Model Builder. Alt+right arrow Ctrl+right arrow Move to the next selected node in the Model Builder. Ctrl+A Command+A Select all domains, boundaries, edges, or points; select all cells in a table. Ctrl+C Command+C Copy text in fields. Copy images in graphics and plot windows. Ctrl+D Command+D Clear the selection of all domains, boundaries, edges, or points in the Model Builder. Clear all selections in form editor windows. Ctrl+Shift+D Command+Shift+D Duplicate the selected node in the Model Builder. Ctrl+F Command+F Find a search string in a model or application method. Ctrl+N Command+N Create a new model. Ctrl+O Command+O Open a model file. Ctrl+P Command+P Print the contents of the plot window. Ctrl+S Command+S Save a model file. Ctrl+V Command+V Paste copied text. Ctrl+Y Ctrl+Shift+Z Redo the last undone operation. Ctrl+Z Command+Z Undo the last operation. Ctrl+up arrow Command+up arrow Move a definitions node, geometry node, physics interface or feature node (except default nodes), material node, mesh node, study step node, or results node up one step. Ctrl+down arrow Command+down arrow Move a definitions node, geometry node, physics interface or feature node (except default nodes), material node, mesh node, study step node, or results node down one step. Ctrl+Tab Ctrl+Tab Switch focus to the next window on the desktop. Ctrl+Shift+Tab Ctrl+Shift+Tab Switch focus to the previous window on the desktop. Ctrl+Alt+A Switch to the Application Builder window from the Model Builder. Ctrl+Alt+M Switch to the Model Builder window from the Application Builder. Ctrl+F8 Test an application. Ctrl+Alt+left arrow Command+Alt+left arrow Switch focus to the Model Builder window. Ctrl+Alt+right arrow Command+Alt+right arrow Switch focus to the Settings window. Ctrl+Alt+up arrow Command+Alt+up arrow Switch focus to the previous section in the Settings window. Ctrl+Alt+down arrow Command+Alt+down arrow Switch focus to the next section in the Settings window. Shift+F10 or (Windows only) Menu key Ctrl+F10 Open the context menu. Ctrl+Pause Stop running a method when test running applications. Ctrl+Space Ctrl+Space Open list of predefined quantities for insertion in Expression fields.