diff --git a/sys/apis/ui.lua b/sys/apis/ui.lua
index c9bcabc..7911419 100644
--- a/sys/apis/ui.lua
+++ b/sys/apis/ui.lua
@@ -1490,6 +1490,7 @@ end
 
 function UI.Grid:drawHeadings()
 	local x = 1
+	local sb = UI.StringBuffer(self.width)
 	for _,col in ipairs(self.columns) do
 		local ind = ' '
 		if col.key == self.sortColumn then
@@ -1499,13 +1500,17 @@ function UI.Grid:drawHeadings()
 				ind = self.sortIndicator
 			end
 		end
+		sb:insert(ind .. col.heading, col.cw + 1)
+		--[[
 		self:write(x,
 			1,
 			Util.widthify(ind .. col.heading, col.cw + 1),
 			self.headerBackgroundColor,
 			col.key == self.sortColumn and self.headerSortColor or self.headerTextColor)
 		x = x + col.cw + 1
+		]]
 	end
+	self:write(1, 1, sb:get(), self.headerBackgroundColor, self.headerTextColor)
 end
 
 function UI.Grid:sortCompare(a, b)
diff --git a/sys/extensions/6.tl3.lua b/sys/extensions/6.tl3.lua
index f231f4b..1ad1088 100644
--- a/sys/extensions/6.tl3.lua
+++ b/sys/extensions/6.tl3.lua
@@ -935,6 +935,13 @@ function turtle.isEquipped(item)
 	end
 end
 
+function turtle.unequip(side)
+	if not turtle.selectSlotWithQuantity(0) then
+		return false, 'No slots available'
+	end
+	return turtle.equip(side)
+end
+
 -- [[  ]] --
 function turtle.run(fn, ...)
 	local args = { ... }
@@ -980,6 +987,12 @@ function turtle.addWorldBlock(pt)
 	Pathing.addBlock(pt)
 end
 
+function turtle.addWorldBlocks(pts)
+	Util.each(pts, function(pt)
+		Pathing.addBlock(pt)
+	end)
+end
+
 local movementStrategy = turtle.pathfind
 
 function turtle.setMovementStrategy(strategy)