Options opens a tabbed dialog with options of SuperMemo. Here is a short list of the most important parameters you can set with Tools : Options (see mouse hints for more about parameters not listed below):

* Learning : Forgetting index - determine the proportion of elements that can be forgotten at repetitions (state it as percentage). Higher value of forgetting index will let you learn faster at the cost of knowledge retention. All new elements introduced into the system will by default have their forgetting index set as in Options : Learning : Forgetting index. You can later change this (e.g. in Contents window with Set Forgetting Index

* Learning : Classic layout - use classic SuperMemo window layout upon entering the learning mode

* Learning : Full repetition history makes it possible to keep the full record of repetitions available with double click on Item data window (this data is stored in \INFO\REPS.DAT)

* Learning : Sound feedback makes it possible to choose between: (1) no sound feedback at repetitions, (2) default Windows feedback for Pass and Fail and (3) custom feedback for Pass and Fail as defined in Custom sounds group box

* Learning : Custom sounds - names of sound registry members played on Pass and Fail at repetitions (only if Options : Learning : Sound feedback is set to Custom)

* Data access : Access mode - determines the scope of access given to the user of the system. In read-only mode, the user cannot modify the system. In the learn-only mode, the user can learn with the system but cannot modify its contents. Finally the full access modes activates all authoring options of SuperMemo.

* Data access : Hide SuperMemo - makes it possible to hide the SuperMemo shell

* Data access : Hide navigation toolbar - makes it possible to hide caption, menu and the toolbar in the element window (e.g. to entirely determine the contents of the element window, its buttons, graphics, etc.)

* Data access : Secondary storage - determines the location of multimedia files that have not been installed on your hard disk, and instead are accessed directly from CD-ROM

* Appending : Default item template - name of the item template that will be used when appending new item elements. You can save templates with Save As Template on the element pop-up menu. Templates are stored in template registry (see Search : Template) and make it easy to add a large number of knowledge elements with same component layout and properties (instead of using Append new items you can Ctrl-click nodes newly added to knowledge hierarchy and load templates into the knowledge element by means of Load Template)

* Appending : Current Append Hook - hierarchy node to which new items are appended by default. By using Ctrl+A, you may add new items to the current hook node without being concerned with the structure of the knowledge hierarchy

* Date - change the current date. Important! Note that changing the date may result in integrity errors. For example, SuperMemo may try to correct the date of repetitions that have been already made at a date that is later than today’s date! Please make sure that you never change the date backwards during the learning process. For example, if you want to change repetitions after midnight on June 11, first change the date back to June 10, then make repetitions and then correct the date again to June 11. Once you make first repetitions on June 11, do not change the date!

* Language : System translation - determines translation registry used when Shift-clicking text components. You can use several translation registries with one knowledge system and decide upon the language used by choosing the appropriate file from the combo box

* Language : Localization language - determines translation file used to display the interface of hidden SuperMemo. Translation files are available in TRANSLAT directory and have the standard extension TRA. You can change the SuperMemo interface by choosing the button Localization table