Recovering and Repeating Actions

1. Open at least one object and reverse actions that can be recovered.

   In this scenario, the object looks like this:

2. Click Redo in the Standard toolbar or select Edit > Redo xxx (or press Ctrl+Y), "xxx" corresponding to the name of the last action undone.

3. If you want to recover the last action more than once, repeat step 1 as many times as required.

   When there is no action to recover, Redo is replaced by Repeat, enabling you in the right conditions to restart a command that you just used. However, when a command run in repeat mode is interrupted, it is automatically restarted afterwards and this, even if you click Cancel. The only way to interrupt a command in repeat mode is to select another command (such as Select, for instance).

4. If you want to display an history of actions that can be recovered in the active document, click Redo with history :

   The name of the document in which you are about to recover actions is displayed at the top of the dialog box (where you can see "Search1.CATProduct"). The Redo with history dialog box lets you choose the actions you wish to recover from the numbered list displayed in the bottom part, the most recently reversed action being displayed at the top of the list.
   Each action is identified by its name, for instance "(Paste Special)" refers to Edit > Paste Special. Action names corresponding to an internal transition inside a command (e.g. "Select search results...") are followed by ... to distinguish them from global commands. You can reverse then recover internal transitions as long as you are in the command. If several Undo actions are performed successively until the command itself is reversed, then you cannot recover its internal transitions. For instance, suppose the following scenario with two different cases: step 1: copy an object step 2: paste the object step 3: select the object then move it Case 1 Click Undo: this moves the object back to its original position in step 2. Click Redo: this moves the object to the location defined in step 3. You can reverse then recover the move since you are still in the Select command. Case 2 Click Undo: this moves the object back to its original position in step 2. Click Undo once again: the paste action is canceled and you go back to step 1. Click Redo: the object is pasted. But you cannot recover step 3 after this and if you display the history, you can see that it is empty. You cannot recover the move because the second reversal impacts the Paste command and not the Select command anymore.
   	If you want to recover the first action only, simplyo click Redo because the first action is already highlighted in the list: the action is recovered and removed from the history. If you want to recover the first four actions, all you need to do is click the last action to be recovered (i.e. the fourth one in our example): clicking an action implies that all former actions are selected as well and thus, recovered in order to keep the history. If you change your mind and decide to recover the first two actions instead, click the second action in the list: only the first two actions are selected and not the first four anymore.
   Bear in mind that one history is used per document ; the history of actions is not forwarded from one document to another. As a consequence, recovering actions in a document opened several times simultaneously (e.g. when opening a CATPart and a CATProduct containing this CATPart) may corrupt data. It is recommended not to recover actions in a document that has been modified in another window.

5. When satisfied with your selection, click Redo to recover all the selected actions.The dialog box stays open and you can keep on recovering actions.

   In this scenario, "Offset definition" has been selected in the right column which means that the line and offset creation has been recovered. The result now looks like this:

6. To close the Redo with history dialog box, click Close.

More about the Redo capability
 

• Some actions cannot be recovered. When this is the case the command is grayed out
• Sometimes, the command is not grayed out but when you run the command, no action is recovered. The reason is that a modification has been registered meanwhile and therefore, no Redo action is allowed. In that case, the Redo stack is emptied after clicking the Redo icon which is then grayed out.