allow suits to be messed with

modular_zzmeta/code/modules/mob/living/carbon/human/human_stripping.dm

@@ -0,0 +1,44 @@
+// Lets other players trigger a suit's alt-click behavior from the strip menu, not just the wearer.
+/datum/strippable_item/mob_item_slot/suit/get_alternate_actions(atom/source, mob/user, obj/item/item)
+	. = ..()
+	var/obj/item/clothing/suit/suit = item
+	if(!istype(suit))
+		return
+	if(can_adjust_suit(suit))
+		. += "adjust_suit"
+
+/datum/strippable_item/mob_item_slot/suit/perform_alternate_action(atom/source, mob/user, action_key, obj/item/item)
+	if(!..())
+		return
+	if(action_key != "adjust_suit")
+		return
+	var/obj/item/clothing/suit/suit = item
+	if(!istype(suit) || !can_adjust_suit(suit))
+		return
+	do_adjust_suit(source, user, suit)
+
+/// Whether this suit has any known alt-click adjustment behavior (a toggle_icon component, or a bespoke click_alt override such as wintercoat zipping).
+/datum/strippable_item/mob_item_slot/suit/proc/can_adjust_suit(obj/item/clothing/suit/suit)
+	if(suit.GetComponent(/datum/component/toggle_icon))
+		return TRUE
+	var/obj/item/clothing/suit/hooded/wintercoat/coat = suit
+	if(istype(coat) && coat.can_altclick_zip)
+		return TRUE
+	return FALSE
+
+/datum/strippable_item/mob_item_slot/suit/proc/do_adjust_suit(atom/source, mob/user, obj/item/clothing/suit/suit)
+	if(!user.Adjacent(source))
+		source.balloon_alert(user, "can't reach!")
+		return
+
+	to_chat(source, span_notice("[user] is trying to adjust your [suit]."))
+	if(!do_after(user, suit.strip_delay * 0.5, source))
+		return
+	to_chat(source, span_notice("[user] successfully adjusted your [suit]."))
+
+	// Mirrors /mob/proc/base_click_alt's dispatch order: signal handlers first, then the click_alt() proc fallback.
+	// The can_perform_action proc is skipped on purpose. Its reachability check assumes user is reaching into
+	// their own inventory or a container with atom_storage, which a worn suit on another mob is not.
+	if(SEND_SIGNAL(suit, COMSIG_CLICK_ALT, user) & CLICK_ACTION_ANY)
+		return
+	suit.click_alt(user)

tgstation.dme

@@ -10520,5 +10520,6 @@
 #include "modular_zzmeta\code\modules\emotes\species_crys.dm"
 #include "modular_zzmeta\code\modules\loadout\categories\toys.dm"
 #include "modular_zzmeta\code\modules\mob\living\living_say.dm"
+#include "modular_zzmeta\code\modules\mob\living\carbon\human\human_stripping.dm"
 #include "modular_zzmeta\code\modules\mob\living\carbon\human\species_types\jellypeople.dm"
 // END_INCLUDE

tgui/packages/tgui/interfaces/StripMenu.tsx

@@ -117,6 +117,13 @@ const ALTERNATE_ACTIONS: Record<string, AlternateAction> = {
     icon: 'mask',
     text: 'Adjust bridle',
   },
+
+  // META EDIT BEGIN - suit strip-menu adjust
+  adjust_suit: {
+    icon: 'vest',
+    text: 'Adjust suit',
+  },
+  // META EDIT END
 };
 
 const SLOTS: Record<