Interface button to switch trunk light

In my Model X, the trunk light automatically switches off after a few minutes while the lid is open - often in the middle of myself loading something. The currently only way to get the light back on is to close and re-open the lid. Sometimes I am loading stuff which is large - which prevents me from closing the lid, hence I have to finish loading in darkness...

Would be great to add a button on the dashboard to switch the trunk light back on again (maybe greyed out when the lid is closed).

Totally agree.  I have a Model 3 and have the same problem when unloading in the dark.  In order to balance power saving with convenience, maybe the interface button needs to switch between 'Normal/Auto' and 'Extended time' where 'Extended time' is say 30 minutes; this way it still turns off if you leave the trunk open accidentally.