private void transferOkBtn_Click(object sender, EventArgs e)
        {
            if (!DoomEternal.Saves.SaveExists(srcComboBox.Text, out SrcSave))
            {
                MessageBox.Show("Invalid source!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (!DoomEternal.Saves.SaveExists(dstComboBox.Text, out DstSave))
            {
                MessageBox.Show("Invalid destination!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }

            if (!SrcSave.Exists())
            {
                MessageBox.Show("Source directory doesn't exist!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }

            if (!DstSave.Exists())
            {
                MessageBox.Show("Destination directory doesn't exist!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }

            DialogResult = DialogResult.OK;
        }