Open Project dialogs

Two different Open Project dialogs can be invoked from the Launch Pad.

One dialog is invoked via a double-click on a Working Environment in the Working Environments tab. This dialog is described under Open Project dialog.
The second dialog is invoked from the Launch Pad's Project > Open Project... menu, and is described below.

Menus

Menu | Description
Files | Lists a history of recently opened files.
Directories | Lists a history of recently opened directories.
Options | Allows you to configure the Files and Directories menus.

Opening Mode check boxes
Selected Opening Mode check boxes determine what data is used in opening a project.

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With Symbols | Opens projects with symbol information. For browsing and day-to-day development work, enable this check-box. If you do not need symbol information, e.g. to open large projects for making structural changes, clear this check box. Default: selected.
Use Cache | When projects are closed, all necessary information for re-opening them is cached in a single file to speed up project opening. If Use Cache is selected, only this file is read. If not, all and the original Project Description Files (PDFs) are read, and all source files are checked. Caution: The cached information can be incorrect if (1.) changes are made to projects and files between SNiFF+ sessions, that is, outside of SNiFF+, or (2.) if the preceding SNiFF+ session was terminated unexpectedly. Default: not selected.