- * **Group of elements to duplicate** (**mandatory**): these elements will be duplicated.
- * **Group of nodes not to duplicate** (**optional**): group of nodes at crack bottom which will not be duplicated.
- * **Group of elements to replace nodes with new ones** (**mandatory**): the new nodes will replace the nodes to duplicate within these elements.
- * **Construct group with newly created elements** option (**checked by default**): if checked - the group of newly created elements will be built.
- * **Construct group with newly created nodes** option (**checked by default**): if checked - the group of newly created nodes will be built.
+ * **Group of elements to duplicate** (*mandatory*): these elements will be duplicated.
+ * **Group of nodes not to duplicate** (*optional*): group of nodes at crack bottom which will not be duplicated.
+ * **Group of elements to replace nodes with new ones** (*mandatory*): the new nodes will replace the nodes to duplicate within these elements. **Generate** button tries to automatically find such elements and creates a group of them. This button becomes active as soon as **Group of elements to duplicate** is selected.
+ * **Construct group with newly created elements** option (*checked by default*): if checked - the group of newly created elements will be built.
+ * **Construct group with newly created nodes** option (*checked by default*): if checked - the group of newly created nodes will be built.