Holding signal true for x seconds in LabView
Since you don't show more of your schematic, I guess you have some kind of process which runs again and again within a loop.

One way to accomplish your task is using a shift register to carry data into the next iteration of the loop. If the button is pressed, (current time + 10 seconds) is written to the register, otherwise, it stays unchanged:



You should always initialize a shift register (wire something to the left input) unless you have a reason not to do so, because shift register will keep the value from the last time the VI ran.