Before first instance block If you want to add records before a sequence of a certain block type, you can use Before first instance blocks. This type of block will appear as a sub-block to the selected block type. The sub-block will be processed before each sequence of parent blocks. To add the block In the Process view, right-click the main block and select Insert Before First Instance Block. The free block is added to the main block. To configure the block In the Process view, select the free block and edit the properties in the Properties view, or right-click the free block and select the appropriate shortcut menu command. Before First Instance Block.