I wanted to execute a Test Plan as Below. Example : I wanted every http request should take delay of two minutes
put all your http requests under this transaction controller
add constant timer (with value as 2 min - please find the 2nd screen-shot) to transaction controller (this way it will be applicable to all request within that transaction controller)
or if only 2 request are there then add only 1 constant timer in between both the requests. Please find below screen-shot