Panel portion 402 includes opening 408 configured to receive an attachment extension of a ground lug holder to allow it to remain coupled to portion 400 while the ground lug holder is not being utilized to secure a ground lug. For example, opening 408 is configured to receive an inserted attachment extension 212 of ground lug holder 200. Opening 408 is a keyed opening with a shape (e.g., D-shaped) that corresponds to a cross-sectional shape of the inserted attachment extension of the ground lug holder. While the ground lug holder is not in use to secure a ground lug, a portion of the attachment extension of the ground lug holder can remain inserted in opening 408 and a grooved channel on the attachment extension may fit on to opening 408 to allow it to hang on opening 408.