There is no such option here. QLog is not a program for controlling a rig, but for logging QSOs. There are many other applications for controlling a rig that specialize only in controlling and are very good at it. Tune button is not necessary for logging QSOs. BTW, not all rig backends and rigs can tune and finally it is easier to press a button on the rig than to have an overcrowded layout , don't you think?
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