diff --git a/core/modules/widgets/select.js b/core/modules/widgets/select.js
index 18552fc1a..b0d7385cb 100644
--- a/core/modules/widgets/select.js
+++ b/core/modules/widgets/select.js
@@ -138,6 +138,7 @@ SelectWidget.prototype.execute = function() {
 	this.selectClass = this.getAttribute("class");
 	this.selectDefault = this.getAttribute("default");
 	this.selectMultiple = this.getAttribute("multiple", false);
+	this.selectSize = this.getAttribute("size");
 	// Make the child widgets
 	var selectNode = {
 		type: "element",
@@ -150,6 +151,9 @@ SelectWidget.prototype.execute = function() {
 	if(this.selectMultiple) {
 		$tw.utils.addAttributeToParseTreeNode(selectNode,"multiple","multiple");
 	}
+	if(this.selectSize) {
+		$tw.utils.addAttributeToParseTreeNode(selectNode,"size",this.selectSize);
+	}
 	this.makeChildWidgets([selectNode]);
 };
 
diff --git a/editions/tw5.com/tiddlers/widgets/SelectWidget.tid b/editions/tw5.com/tiddlers/widgets/SelectWidget.tid
index 8eab689bd..f8db9617f 100644
--- a/editions/tw5.com/tiddlers/widgets/SelectWidget.tid
+++ b/editions/tw5.com/tiddlers/widgets/SelectWidget.tid
@@ -10,6 +10,8 @@ type: text/vnd.tiddlywiki
 The select widget displays a popup menu based on a [[HTML select element|https://developer.mozilla.org/en-US/docs/Web/HTML/Element/select]]. The popup (or dropdown) contains a list of items defined by `<option>` and `<optgroup>` elements. 
 Every time the user selects a new value in the menu, the selected value is written to the text of a specified tiddler field or index. If the tiddler value changes the menu is automatically updated to reflect the new value.
 
+In multiple selection mode, the list of selected values is bound to the specified tiddler field or index. Browsers generally use the <kbd>ctrl</kbd> or <kbd>cmd</kbd> keys for multiple selection.
+
 For example, this select widget displays a list of the tags in this wiki:
 
 <$macrocall $name="wikitext-example-without-html" src="<$select tiddler=<<qualify 'select-demo'>> default='HelloThere'>
@@ -34,7 +36,8 @@ The content of the `<$select>` widget should be one or more HTML `<option>` or `
 |index |The index of a property in a [[DataTiddler|DataTiddlers]] (takes precedence over the field attribute) |
 |class |CSS classes to be assigned to the HTML select element |
 |default |Default value to be used if the tiddler, field or index specifies a missing value |
-
+|multiple |If present, switches to multiple selection mode |
+|size |The number of rows to display in multiple selection mode |
 
 ! Examples
 
@@ -104,7 +107,7 @@ This example uses a nested pair of list widgets. The outer one generates the `<o
 
 This example uses the `multiple` keyword to specify that we should be able to select multiple items.
 
-<$macrocall $name="wikitext-example-without-html" src="<$select tiddler='$:/generated-list-demo-state' field='testing' multiple>
+<$macrocall $name="wikitext-example-without-html" src="<$select tiddler='$:/generated-list-demo-state' field='testing' multiple size='8'>
 <$list filter='[tag[TableOfContents]]'>
 <option><$view field='title'/></option>
 </$list>