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You can but it's not very smart.
Create 4 buttons where you assin, for each one, an action. I suggest to use in external action SET VARIABLE.
To go right :
use the variable var_mid_long and assign a value like ='$(var_mid_long)' * 1.001
to go up
use the variable var_mid_latand assign a value like ='$(var_mid_lat)' * 1.0001
of course you can adapt the moving factor.
Maybe a solution with a macro but I don't know
I will give it a try and let you know if it works !!