When the action has its own description page - it is typed in bold. Click on it to get all the details about it.
## Undo Undoes the last change that was made to the selected Gedcom file. It is possible to undo up to 10 modifications. This parameter can be changed in [Preferences, Editing, Maximum number of cancellations](https://docs.ancestris.org/books/user-guide/page/preferences#bkmrk-zone-%C3%89diteur "Preferences / Maximum number of cancellations"). This menu item is only available when unsaved changes have been made and are not saved yet. It is not possible to undo saved changes. But, it is always possible to restore a backup copy. ## Redo Redoes the last modification previously undone on the selected Gedcom file. It is possible to redo all undone modifications. This action is only available if at least one modification has been cancelled. --- ## Cut Deletes the selected text after putting a copy on the clipboard. The text can then be pasted somewhere else. This menu item is only available when the cursor is in a text field. ## Copy Copies the selected text to the clipboard. The text can then be pasted somewhere else. This menu item is only available when the cursor is in a text field. ## Paste Pastes the clipboard content at the cursor position, in a text field. This can be a content from another software, something copied from the Internet, etc. This menu item is only available when the cursor is in a text field. --- ## [Find...](https://docs.ancestris.org/books/user-guide/page/find-replace-%28l%29 "Find / Replace") Opens an assistant to help you find a string of characters, no matter where it is in the genealogical file, anywhere in the file or at a specific location, such as an specific [entity](https://docs.ancestris.org/books/user-guide/page/entities "Entities") or [property](https://docs.ancestris.org/books/user-guide/page/properties "Properties"). ## [Replace ...](https://docs.ancestris.org/books/user-guide/page/find-replace-%28l%29 "Find / Replace") Opens an assistant to help you replace a string of characters with another one anywhere in the genealogical file. It works in combination with the **Find** function above. ## [Delete or Rename tags...](https://docs.ancestris.org/books/user-guide/page/delete-%28l%29 "Delete") Deletes a data element globally throughout the genealogy or rename them. When renaming, the properties can be moved within the same entity. This is particularly useful to delete empty data or clean your genealogy after a migration from another software. --- ## [Generate Sosa Numbers](https://docs.ancestris.org/books/user-guide/page/generate-sosa-numbers-%28l%29 "Generate Sosa numbers") Generates Sosa, d'Aboville or Sosa d'Aboville numbering for a chosen individual or deletes numbering for the whole genealogy. ## [Generate ID Numbers](https://docs.ancestris.org/books/user-guide/page/generate-id-numbers-%28l%29 "Generate ID numbers") Generates or modifies Identification numbers, globally or one by one. ## [Mark special individuals](https://docs.ancestris.org/books/user-guide/page/mark-special-individuals-%28l%29 "Mark special individuals") Marks or displays certain special individuals in your genealogy such as implex families, top individuals, multiple ancestors, Y-DNA or mtDNA individuals. ## [Calculate ages](https://docs.ancestris.org/books/user-guide/page/age-calculation "Calculate ages") Calculates ages of all the individuals at their respective life events. ## Sort properties for all entities Sorts all properties of all entities according to a relevant and consistent order. It directly updates the genealogy. The result can only be seen from the Gedcom editor. No window appears as no settings are required. ## Capitalize all surnames Updates all individual names to make sure all surnames are in uppercase. ## [See modifications history](https://docs.ancestris.org/books/user-guide/page/see-modifications-history-%28l%29 "See modifications history") Displays all changes made to a Gedcom file. If needed, the list of changes can be cleared by clicking on [](https://docs.ancestris.org/uploads/images/gallery/2020-06/button-clear-history.png).