can you please help me how to add keystudio microbit in fritizing
Last link on the page:
If you are looking for the Micro:bit itself, there is an improved version available in the forums here:
which is an improved version of the part referenced at the bottom of the page linked to above. I have also done a couple of breakout boards for the micro:bit (also in this forum.) If you are looking for the entire starter kit, there may not be one but the some or all of the basic parts may be available,.