Simulate mouse drag from relative UI position

It seems to be working ok now. Will test it more and see how it goes.

Here is the updated script that works on all selected tracks :-)

sf.ui.proTools.mainWindow.invalidate()

sf.ui.proTools.selectedTracks.trackHeaders.slice().map(track => {
    track.trackSelect();
    insertSlotSwitcher('Insert D', 'Insert J');
});

function insertSlotSwitcher(originSlot, destinationSlot) {

    var insertButtonArray = ['Insert A', 'Insert B', 'Insert C', 'Insert D', 'Insert E', 'Insert F', 'Insert G', 'Insert H', 'Insert I', 'Insert J'];

    function fastDrag(startPos, endPos) {
        const numberOfPointsInBetween = 3;
        const timeToWaitBeforeFirstDrag = 1;
        const timeToWaitBetweenEachDrag = 100;
        const timeToWaitBeforeDropping = 1;

        sf.mouse.down({ position: startPos });

        for (var i = 0; i < numberOfPointsInBetween; i++) {
            var dragPos = {
                x: (endPos.x - startPos.x) / numberOfPointsInBetween * i + startPos.x,
                y: (endPos.y - startPos.y) / numberOfPointsInBetween * i + startPos.y,
            };
            sf.wait({ intervalMs: i == 0 ? timeToWaitBeforeFirstDrag : timeToWaitBetweenEachDrag });
            sf.mouse.drag({ position: dragPos });
        }

        sf.mouse.drag({ position: endPos });

        sf.wait({ intervalMs: timeToWaitBeforeDropping });

        sf.mouse.up({ position: endPos });
    }

    function getFirstFreeInsertIndex() {
        var btns = sf.ui.proTools.selectedTrack.invalidate().insertButtons;
        for (var i = 0; i < 10; i++)
            if (btns[i].value.invalidate().value === "unassigned") return i;
    }

    function checkForFreeInsert() {
        if (getFirstFreeInsertIndex() == undefined)
            return false
        else return true
    }


    if (checkForFreeInsert()) {
        //Establish Index & Frame for First Free Slot
        var firstFreeSlotIndex = getFirstFreeInsertIndex();
        var firstFreeSlotFrame = sf.ui.proTools.selectedTrack.insertButtons[firstFreeSlotIndex].frame;

        //Establish Index & Frame for Insert Origin
        var originSlotIndex = insertButtonArray.indexOf(originSlot);
        var originSlotFrame = sf.ui.proTools.selectedTrack.insertButtons[originSlotIndex].frame;

        //Establish Index & Frame for  Insert Destination
        var destinationSlotIndex = insertButtonArray.indexOf(destinationSlot);
        var destinationSlotFrame = sf.ui.proTools.selectedTrack.insertButtons[destinationSlotIndex].frame;
    }
    //Perform Insert Moves 

    if (checkForFreeInsert() === false) { //If no free slots are available
        log("There are no free insert slots on this track");
    } else if (sf.ui.proTools.selectedTrack.insertButtons[destinationSlotIndex].value.value === "unassigned") { //If Destination slot is unassigned
        //Move Origin Slot to Sestination Slot
        fastDrag(originSlotFrame, destinationSlotFrame);
    } else if (sf.ui.proTools.selectedTrack.insertButtons[originSlotIndex].value.value === "unassigned") { //If there is no Insert at the origin
        log("There is no insert on \"" + originSlot + "\"");
    } else {
        //Move Destination Slot to First Free Slot
        fastDrag(destinationSlotFrame, firstFreeSlotFrame);

        //Wait for for First Free Slot to be assigned
        while (sf.ui.proTools.selectedTrack.insertButtons[firstFreeSlotIndex].value.invalidate().value === "unassigned") {
            sf.wait({ intervalMs: 1 });
        }

        //Move Origin Slot to Sestination Slot
        fastDrag(originSlotFrame, destinationSlotFrame);

        //Wait for for Destination Slot to be assigned
        while (sf.ui.proTools.selectedTrack.insertButtons[destinationSlotIndex].value.invalidate().value === "unassigned") {
            sf.wait({ intervalMs: 1 });
        }

        //Move First Free Slot to Origin Slot
        fastDrag(firstFreeSlotFrame, originSlotFrame);
    };
}