Similar to InSystemMemoryContentEditor feature in ALTERA, there might be a similar feature in Xilinx, you may have to Explore on it.
The Feature is helpful to capture the real time values on FPGA and store it to a file on your PC. Which can late be viewed and analyzed .
There isn't one, and I don't think Vivado supports it either, though I'll admit I haven't specifically looked for it. You shouldn't make assumptions about tool chains you haven't used extensively.