Right click on the control/indicator and select Format & Precission. Choose binary in the list of formats. The number must be one of the I or U types to display in binary.
A is represented as Hexadecimal number and 0001010 is a numeric set to binary display. But later, I will need to convert the numeric binary display to a string.
OK, only conversion to a string is needed to solve the problem. (Everything else is just a cosmetic feature of the indicator where you set the formatting. This does not change the underlying data.)
Just use "format into string" with a format code of "%07b" (=show seven binary digits and pad with zeroes to the left).
Use the Format Into String function. Wire in the number. The format string should be "%8b" for 8 bits of binary. Also, right click on the function and select Edit Format String. Here you can specify to pad with zeros. Then the output will look like "00001010" for hex A.