A menu that lets you copy all your fleets to another account. Note: the overwrite button overwrites all fleets in the target account, not just one fleet.

copyPage.js

// edited from original copy page so it only copies the fleets
//
(function() {
    ui.copyPage = function() {
        return ui.inScreen("menu", "Copy Import/Export", function() {
            onecup.padding_bottom(100);
            onecup.position("relative");
            onecup.textarea("#commanderCode", function() {
                onecup.position("absolute");
                onecup.top(70);
                onecup.left(10);
                onecup.width(500);
                onecup.bottom(60);
                onecup.border("1px solid rgba(255,255,255,.3)");
                onecup.background_color("rgba(0,0,0,.3)");
                onecup.color("rgba(255,255,255,.9)");
                onecup.font_size(8);
                //return onecup.text(commander.fleet);
                return onecup.text(JSON.stringify(commander.fleet));
            });
            onecup.div(".hover-black", function() {
                onecup.position("absolute");
                onecup.bottom(10);
                onecup.left(10);
                onecup.height(40);
                onecup.width(245);
                onecup.color("white");
                onecup.font_size(20);
                onecup.text_align("center");
                onecup.line_height(40);
                onecup.text("Overwrite");
                return onecup.onclick(function() {
                    var data, json;
                    console.log("here");
                    data = onecup.lookup('#commanderCode').value;
                    json = JSON.parse(data);
                    //window.commander = json;
                    window.commander.fleet = json;
                    //console.log("local save");
                    //commander.ts = Date.now();
                    //db.save("commander", commander);
                    //rootNet?.sendPlayer()
                    account.rootSave();
                    //return location.reload();
                    ui.go("menu");
                });
            });
            return onecup.div(".hover-black", function() {
                onecup.position("absolute");
                onecup.bottom(10);
                onecup.left(255);
                onecup.height(40);
                onecup.width(245);
                onecup.color("white");
                onecup.font_size(20);
                onecup.text_align("center");
                onecup.line_height(40);
                onecup.text("Merge");
                return onecup.onclick(function() {

                    var createMergedFleets = function(fleetA, fleetB) {

                        if(!fleetA) return fleetB;
                        if(!fleetB) return fleetA;

                        var newFleet = {ais: {}, selection: fleetA.selection};
                        var index = 0;

                        for(let fleet of [fleetA, fleetB]) {
                            let keyTable = {};
                            for(let i in fleet) {
                                if(fleet[i] && /[0-9]+,[0-9]+/.test(i)) {
                                    let tmp = i.split(","), row = tmp[0], col = tmp[1];

                                    if(!keyTable[row]) {
                                        keyTable[row] = index++;
                                    }

                                    let key = keyTable[row] + "," + col;
                                    newFleet[key] = fleet[i];
                                }
                            }
                            for(let i in fleet.ais) {
                                if(typeof keyTable[i] !== "undefined")
                                    newFleet.ais[keyTable[i]] = fleet.ais[i];
                            }
                        }

                        return newFleet;
                    };

                    var data, json;
                    console.log("here");
                    data = onecup.lookup('#commanderCode').value;
                    json = JSON.parse(data);

                    var newFleet = createMergedFleets(window.commander.fleet, json);
                    if(window.commander.fleet.archive || json.archive)
                        newFleet.archive = createMergedFleets(window.commander.fleet.archive, json.archive);
                    window.commander.fleet = newFleet;

                    account.rootSave();
                    ui.go("menu");
                });
            });
        });
    };

}).call(this);

// Fleet screen draw hook
var copyPage = copyPage || {
    fleetUIHook: window.fleetUI
}
window.fleetUI = function() {
    if(!commander) return;

    onecup.div(".hover-black", function() {
        onecup.margin(20);
        onecup.text_align("center");
        onecup.color("white");
        onecup.text("Export/Import All Fleets");
        onecup.position("absolute");
        onecup.top(0);
        onecup.right(64);
        onecup.z_index("2");
        onecup.onclick(function(e) {
            ui.go("copy");
        });
    });

    return copyPage.fleetUIHook.call(this);
}