How to use SEQUENCE as the Target of a BRANCH?

Set evaluate label property of branch step to true.

Then set the label property of sequence with the value on which it needs to be processed. 

we can use the branch in the context of switch case also, for that we have to set the evaluate label property of the branch to false and the set the value for the SWITCH property of the branch as the variable based on which you want to switch and set the label property of the branch as the possible value for the variable you gave in switch.