diff --git a/src/ckdb.c b/src/ckdb.c
index a91c75d3..70b10d31 100644
--- a/src/ckdb.c
+++ b/src/ckdb.c
@@ -956,6 +956,22 @@ static void setnow(tv_t *now)
 	now->tv_usec = spec.tv_nsec / 1000;
 }
 
+static void dsp_transfer(K_ITEM *item, FILE *stream)
+{
+	TRANSFER *t = NULL;
+
+	if (!stream)
+		LOGERR("%s() called with (null) stream", __func__);
+	if (!item)
+		fprintf(stream, "%s() called with (null) item\n", __func__);
+
+	t = DATA_TRANSFER(item);
+
+	fprintf(stream, " name='%s' data='%s' malloc=%c\n",
+			t->name, t->data,
+			(t->value == t->data) ? 'N' : 'Y');
+}
+
 // order by name asc
 static double cmp_transfer(K_ITEM *a, K_ITEM *b)
 {
@@ -3087,6 +3103,25 @@ void poolstats_reload()
 	PQfinish(conn);
 }
 
+static void dsp_userstats(K_ITEM *item, FILE *stream)
+{
+	USERSTATS *u = NULL;
+	char *createdate_buf;
+
+	if (!stream)
+		LOGERR("%s() called with (null) stream", __func__);
+	if (!item)
+		fprintf(stream, "%s() called with (null) item\n", __func__);
+
+	u = DATA_USERSTATS(item);
+
+	createdate_buf = tv_to_buf(&(u->createdate), NULL, 0);
+	fprintf(stream, " pi='%s' uid=%"PRId64" Hs=%f Hs5m=%f Hs1hr=%f Hs24hr=%f cd=%s\n",
+			u->poolinstance, u->userid, u->hashrate, u->hashrate5m,
+			u->hashrate1hr, u->hashrate24hr, createdate_buf);
+	free(createdate_buf);
+}
+
 // order by poolinstance asc,userid asc,createdate asc
 static double cmp_userstats(K_ITEM *a, K_ITEM *b)
 {
@@ -3254,6 +3289,7 @@ static void setup_data()
 	transfer_list = k_new_list("Transfer", sizeof(TRANSFER), ALLOC_TRANSFER, LIMIT_TRANSFER, true);
 	transfer_store = k_new_store(transfer_list);
 	transfer_root = new_ktree();
+	transfer_list->dsp_func = dsp_transfer;
 
 	users_list = k_new_list("Users", sizeof(USERS), ALLOC_USERS, LIMIT_USERS, true);
 	users_store = k_new_store(users_list);
@@ -3295,6 +3331,7 @@ static void setup_data()
 	userstats_list = k_new_list("UserStats", sizeof(USERSTATS), ALLOC_USERSTATS, LIMIT_USERSTATS, true);
 	userstats_store = k_new_store(userstats_list);
 	userstats_root = new_ktree();
+	userstats_list->dsp_func = dsp_userstats;
 
 	getdata();
 
@@ -4007,6 +4044,33 @@ static char *cmd_homepage(char *cmd, char *id, __maybe_unused tv_t *now, __maybe
 	return buf;
 }
 
+static __maybe_unused char *cmd_dsp(char *cmd, char *id, __maybe_unused tv_t *now,
+				    __maybe_unused char *by, __maybe_unused char *code,
+				    __maybe_unused char *inet)
+{
+	__maybe_unused K_ITEM *i_file;
+	__maybe_unused char reply[1024] = "";
+	__maybe_unused size_t siz = sizeof(reply);
+
+	LOGDEBUG("%s(): cmd '%s'", __func__, cmd);
+
+	// WARNING: This is a gaping security hole - only use in development
+	LOGDEBUG("%s.disabled.dsp", id);
+	return strdup("disabled.dsp");
+
+/*
+	i_file = require_name("file", 1, NULL, reply, siz);
+	if (!i_file)
+		return strdup(reply);
+
+	// Only one implemented so far
+	dsp_ktree(userstats_list, userstats_root, DATA_TRANSFER(i_file)->data);
+
+	LOGDEBUG("%s.ok.dsp.file='%s'", id, DATA_TRANSFER(i_file)->data);
+	return strdup("ok.dsp");
+*/
+}
+
 enum cmd_values {
 	CMD_UNSET,
 	CMD_REPLY, // Means something was wrong - send back reply
@@ -4021,6 +4085,7 @@ enum cmd_values {
 	CMD_NEWID,
 	CMD_PAYMENTS,
 	CMD_HOMEPAGE,
+	CMD_DSP,
 	CMD_END
 };
 
@@ -4048,6 +4113,7 @@ static struct CMDS {
 	{ CMD_NEWID,	"newid",	cmd_newid,	ACCESS_SYSTEM },
 	{ CMD_PAYMENTS,	"payments",	cmd_payments,	ACCESS_WEB },
 	{ CMD_HOMEPAGE,	"homepage",	cmd_homepage,	ACCESS_WEB },
+	{ CMD_DSP,	"dsp",		cmd_dsp,	ACCESS_SYSTEM },
 	{ CMD_END,	NULL,		NULL,		NULL }
 };
 
diff --git a/src/ktree.c b/src/ktree.c
index f899e2a8..f8abd487 100644
--- a/src/ktree.c
+++ b/src/ktree.c
@@ -124,6 +124,49 @@ void dump_ktree(K_TREE *root, char *(*dsp_funct)(K_ITEM *))
 		printf(" Empty ktree\n");
 }
 
+void dsp_ktree(K_LIST *list, K_TREE *root, char *filename)
+{
+	K_TREE_CTX ctx[1];
+	K_ITEM *item;
+	FILE *stream;
+	struct tm *tm;
+	time_t now_t;
+	char stamp[128];
+
+	now_t = time(NULL);
+	tm = localtime(&now_t);
+	snprintf(stamp, sizeof(stamp),
+			"[%d-%02d-%02d %02d:%02d:%02d]",
+			tm->tm_year + 1900,
+			tm->tm_mon + 1,
+			tm->tm_mday,
+			tm->tm_hour,
+			tm->tm_min,
+			tm->tm_sec);
+
+	stream = fopen(filename, "w");
+	if (!stream)
+		fprintf(stderr, "%s %s() failed to open '%s' (%d) %s",
+				stamp, __func__, filename, errno, strerror(errno));
+
+	fprintf(stream, "%s Dump of ktree '%s':\n", stamp, list->name);
+
+	if (root->isNil == No)
+	{
+		item = first_in_ktree(root, ctx);
+		while (item)
+		{
+			list->dsp_func(item, stream);
+			item = next_in_ktree(ctx);
+		}
+		fprintf(stream, "End\n");
+	}
+	else
+		fprintf(stream, "Empty ktree\n");
+
+	fclose(stream);
+}
+
 static int nilTest(K_TREE *node, char *msg, int depth, int count, K_TREE *nil2)
 {
 	if (node->isNil == Yo || node == nil2)
diff --git a/src/ktree.h b/src/ktree.h
index 18ff0c16..016cd0a3 100644
--- a/src/ktree.h
+++ b/src/ktree.h
@@ -31,6 +31,7 @@ typedef void *K_TREE_CTX;
 
 extern K_TREE *new_ktree();
 extern void dump_ktree(K_TREE *root, char *(*dsp_funct)(K_ITEM *));
+extern void dsp_ktree(K_LIST *list, K_TREE *root, char *filename);
 extern K_ITEM *first_in_ktree(K_TREE *root, K_TREE_CTX *ctx);
 extern K_ITEM *last_in_ktree(K_TREE *root, K_TREE_CTX *ctx);
 extern K_ITEM *next_in_ktree(K_TREE_CTX *ctx);